Home / 122,758.38-169,346.53-74,928.70

Finding the Fourth Proportional to 122,758.38, 169,346.53 and 74,928.70

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Solution

The fourth proportional to 122,758.38, 169,346.53 and 74,928.70 is: 103,364.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,758.38 : 169,346.53 = 74,928.70 : x
  2. Step 2: Convert to fraction form
    122,758.38/169,346.53 = 74,928.70/x
  3. Step 3: Cross multiply
    122,758.38x = 169,346.53 × 74,928.70
  4. Step 4: Simplify right side
    122,758.38x = 12,688,915,342.41
  5. Step 5: Solve for x
    x = 12,688,915,342.41/122,758.38
  6. Step 6: Final answer
    x = 103,364.96

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1.5x scale

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.