Home / 103,243,019.96-142,505,454.12-67,484,655.20

Finding the Fourth Proportional to 103,243,019.96, 142,505,454.12 and 67,484,655.20

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Solution

The fourth proportional to 103,243,019.96, 142,505,454.12 and 67,484,655.20 is: 93,148,490.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,243,019.96 : 142,505,454.12 = 67,484,655.20 : x
  2. Step 2: Convert to fraction form
    103,243,019.96/142,505,454.12 = 67,484,655.20/x
  3. Step 3: Cross multiply
    103,243,019.96x = 142,505,454.12 × 67,484,655.20
  4. Step 4: Simplify right side
    103,243,019.96x = 9,616,931,435,407,620
  5. Step 5: Solve for x
    x = 9,616,931,435,407,620/103,243,019.96
  6. Step 6: Final answer
    x = 93,148,490.22

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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.