Home / 135,613.28-187,152.48-77,475.14

Finding the Fourth Proportional to 135,613.28, 187,152.48 and 77,475.14

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Solution

The fourth proportional to 135,613.28, 187,152.48 and 77,475.14 is: 106,919.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,613.28 : 187,152.48 = 77,475.14 : x
  2. Step 2: Convert to fraction form
    135,613.28/187,152.48 = 77,475.14/x
  3. Step 3: Cross multiply
    135,613.28x = 187,152.48 × 77,475.14
  4. Step 4: Simplify right side
    135,613.28x = 14,499,663,653.58
  5. Step 5: Solve for x
    x = 14,499,663,653.58/135,613.28
  6. Step 6: Final answer
    x = 106,919.21

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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.