Home / 105,871,767.86-158,672,377.64-85,411,136.27

Finding the Fourth Proportional to 105,871,767.86, 158,672,377.64 and 85,411,136.27

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Solution

The fourth proportional to 105,871,767.86, 158,672,377.64 and 85,411,136.27 is: 128,007,573.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,871,767.86 : 158,672,377.64 = 85,411,136.27 : x
  2. Step 2: Convert to fraction form
    105,871,767.86/158,672,377.64 = 85,411,136.27/x
  3. Step 3: Cross multiply
    105,871,767.86x = 158,672,377.64 × 85,411,136.27
  4. Step 4: Simplify right side
    105,871,767.86x = 13,552,388,069,505,150
  5. Step 5: Solve for x
    x = 13,552,388,069,505,150/105,871,767.86
  6. Step 6: Final answer
    x = 128,007,573.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.