Home / 156,934.38-235,474.56-72,647.40

Finding the Fourth Proportional to 156,934.38, 235,474.56 and 72,647.40

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Solution

The fourth proportional to 156,934.38, 235,474.56 and 72,647.40 is: 109,004.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,934.38 : 235,474.56 = 72,647.40 : x
  2. Step 2: Convert to fraction form
    156,934.38/235,474.56 = 72,647.40/x
  3. Step 3: Cross multiply
    156,934.38x = 235,474.56 × 72,647.40
  4. Step 4: Simplify right side
    156,934.38x = 17,106,614,550.14
  5. Step 5: Solve for x
    x = 17,106,614,550.14/156,934.38
  6. Step 6: Final answer
    x = 109,004.89

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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.