Home / 156,463.04-215,862.40-102,777.28

Finding the Fourth Proportional to 156,463.04, 215,862.40 and 102,777.28

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Solution

The fourth proportional to 156,463.04, 215,862.40 and 102,777.28 is: 141,795.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,463.04 : 215,862.40 = 102,777.28 : x
  2. Step 2: Convert to fraction form
    156,463.04/215,862.40 = 102,777.28/x
  3. Step 3: Cross multiply
    156,463.04x = 215,862.40 × 102,777.28
  4. Step 4: Simplify right side
    156,463.04x = 22,185,750,326.27
  5. Step 5: Solve for x
    x = 22,185,750,326.27/156,463.04
  6. Step 6: Final answer
    x = 141,795.47

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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.