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Finding the Fourth Proportional to 114,681, 158,259.87 and 64,396.20

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Solution

The fourth proportional to 114,681, 158,259.87 and 64,396.20 is: 88,866.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,681 : 158,259.87 = 64,396.20 : x
  2. Step 2: Convert to fraction form
    114,681/158,259.87 = 64,396.20/x
  3. Step 3: Cross multiply
    114,681x = 158,259.87 × 64,396.20
  4. Step 4: Simplify right side
    114,681x = 10,191,334,240.49
  5. Step 5: Solve for x
    x = 10,191,334,240.49/114,681
  6. Step 6: Final answer
    x = 88,866.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.