Home / 143,933,346.04-198,610,948.08-81,205,787.10

Finding the Fourth Proportional to 143,933,346.04, 198,610,948.08 and 81,205,787.10

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Solution

The fourth proportional to 143,933,346.04, 198,610,948.08 and 81,205,787.10 is: 112,054,355.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,933,346.04 : 198,610,948.08 = 81,205,787.10 : x
  2. Step 2: Convert to fraction form
    143,933,346.04/198,610,948.08 = 81,205,787.10/x
  3. Step 3: Cross multiply
    143,933,346.04x = 198,610,948.08 × 81,205,787.10
  4. Step 4: Simplify right side
    143,933,346.04x = 16,128,358,365,513,634
  5. Step 5: Solve for x
    x = 16,128,358,365,513,634/143,933,346.04
  6. Step 6: Final answer
    x = 112,054,355.78

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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.