Home / 99,640.17-149,487.60-49,659.93

Finding the Fourth Proportional to 99,640.17, 149,487.60 and 49,659.93

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Solution

The fourth proportional to 99,640.17, 149,487.60 and 49,659.93 is: 74,503.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,640.17 : 149,487.60 = 49,659.93 : x
  2. Step 2: Convert to fraction form
    99,640.17/149,487.60 = 49,659.93/x
  3. Step 3: Cross multiply
    99,640.17x = 149,487.60 × 49,659.93
  4. Step 4: Simplify right side
    99,640.17x = 7,423,543,751.87
  5. Step 5: Solve for x
    x = 7,423,543,751.87/99,640.17
  6. Step 6: Final answer
    x = 74,503.52

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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.