Home / 131,573,565.72-181,572,956.64-72,837,211.68

Finding the Fourth Proportional to 131,573,565.72, 181,572,956.64 and 72,837,211.68

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Solution

The fourth proportional to 131,573,565.72, 181,572,956.64 and 72,837,211.68 is: 100,516,147.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,573,565.72 : 181,572,956.64 = 72,837,211.68 : x
  2. Step 2: Convert to fraction form
    131,573,565.72/181,572,956.64 = 72,837,211.68/x
  3. Step 3: Cross multiply
    131,573,565.72x = 181,572,956.64 × 72,837,211.68
  4. Step 4: Simplify right side
    131,573,565.72x = 13,225,267,878,151,142
  5. Step 5: Solve for x
    x = 13,225,267,878,151,142/131,573,565.72
  6. Step 6: Final answer
    x = 100,516,147.04

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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.