Home / 106,998,631.20-147,703,312.80-72,238,404.96

Finding the Fourth Proportional to 106,998,631.20, 147,703,312.80 and 72,238,404.96

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Solution

The fourth proportional to 106,998,631.20, 147,703,312.80 and 72,238,404.96 is: 99,719,516.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,998,631.20 : 147,703,312.80 = 72,238,404.96 : x
  2. Step 2: Convert to fraction form
    106,998,631.20/147,703,312.80 = 72,238,404.96/x
  3. Step 3: Cross multiply
    106,998,631.20x = 147,703,312.80 × 72,238,404.96
  4. Step 4: Simplify right side
    106,998,631.20x = 10,669,851,723,979,952
  5. Step 5: Solve for x
    x = 10,669,851,723,979,952/106,998,631.20
  6. Step 6: Final answer
    x = 99,719,516.08

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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.