Home / 156,815.11-235,187.20-72,529.02

Finding the Fourth Proportional to 156,815.11, 235,187.20 and 72,529.02

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Solution

The fourth proportional to 156,815.11, 235,187.20 and 72,529.02 is: 108,777.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,815.11 : 235,187.20 = 72,529.02 : x
  2. Step 2: Convert to fraction form
    156,815.11/235,187.20 = 72,529.02/x
  3. Step 3: Cross multiply
    156,815.11x = 235,187.20 × 72,529.02
  4. Step 4: Simplify right side
    156,815.11x = 17,057,896,815.23
  5. Step 5: Solve for x
    x = 17,057,896,815.23/156,815.11
  6. Step 6: Final answer
    x = 108,777.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.