Home / 162,538.92-243,586.94-78,292.95

Finding the Fourth Proportional to 162,538.92, 243,586.94 and 78,292.95

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Solution

The fourth proportional to 162,538.92, 243,586.94 and 78,292.95 is: 117,332.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,538.92 : 243,586.94 = 78,292.95 : x
  2. Step 2: Convert to fraction form
    162,538.92/243,586.94 = 78,292.95/x
  3. Step 3: Cross multiply
    162,538.92x = 243,586.94 × 78,292.95
  4. Step 4: Simplify right side
    162,538.92x = 19,071,139,722.61
  5. Step 5: Solve for x
    x = 19,071,139,722.61/162,538.92
  6. Step 6: Final answer
    x = 117,332.76

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1.5x scale

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.