Home / 102,879,156.90-142,091,066.84-67,753,979.52

Finding the Fourth Proportional to 102,879,156.90, 142,091,066.84 and 67,753,979.52

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Solution

The fourth proportional to 102,879,156.90, 142,091,066.84 and 67,753,979.52 is: 93,578,092.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,879,156.90 : 142,091,066.84 = 67,753,979.52 : x
  2. Step 2: Convert to fraction form
    102,879,156.90/142,091,066.84 = 67,753,979.52/x
  3. Step 3: Cross multiply
    102,879,156.90x = 142,091,066.84 × 67,753,979.52
  4. Step 4: Simplify right side
    102,879,156.90x = 9,627,235,232,313,542
  5. Step 5: Solve for x
    x = 9,627,235,232,313,542/102,879,156.90
  6. Step 6: Final answer
    x = 93,578,092.22

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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.