Home / 156,639,143.79-216,165,618.72-86,079,140.82

Finding the Fourth Proportional to 156,639,143.79, 216,165,618.72 and 86,079,140.82

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Solution

The fourth proportional to 156,639,143.79, 216,165,618.72 and 86,079,140.82 is: 118,791,192.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,639,143.79 : 216,165,618.72 = 86,079,140.82 : x
  2. Step 2: Convert to fraction form
    156,639,143.79/216,165,618.72 = 86,079,140.82/x
  3. Step 3: Cross multiply
    156,639,143.79x = 216,165,618.72 × 86,079,140.82
  4. Step 4: Simplify right side
    156,639,143.79x = 18,607,350,734,241,308
  5. Step 5: Solve for x
    x = 18,607,350,734,241,308/156,639,143.79
  6. Step 6: Final answer
    x = 118,791,192.83

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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.