Home / 90,626.04-136,211.75-74,931.58

Finding the Fourth Proportional to 90,626.04, 136,211.75 and 74,931.58

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Solution

The fourth proportional to 90,626.04, 136,211.75 and 74,931.58 is: 112,622.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,626.04 : 136,211.75 = 74,931.58 : x
  2. Step 2: Convert to fraction form
    90,626.04/136,211.75 = 74,931.58/x
  3. Step 3: Cross multiply
    90,626.04x = 136,211.75 × 74,931.58
  4. Step 4: Simplify right side
    90,626.04x = 10,206,561,488.86
  5. Step 5: Solve for x
    x = 10,206,561,488.86/90,626.04
  6. Step 6: Final answer
    x = 112,622.83

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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.