Home / 99,659.28-137,528.78-54,337.13

Finding the Fourth Proportional to 99,659.28, 137,528.78 and 54,337.13

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Solution

The fourth proportional to 99,659.28, 137,528.78 and 54,337.13 is: 74,984.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,659.28 : 137,528.78 = 54,337.13 : x
  2. Step 2: Convert to fraction form
    99,659.28/137,528.78 = 54,337.13/x
  3. Step 3: Cross multiply
    99,659.28x = 137,528.78 × 54,337.13
  4. Step 4: Simplify right side
    99,659.28x = 7,472,918,238.27
  5. Step 5: Solve for x
    x = 7,472,918,238.27/99,659.28
  6. Step 6: Final answer
    x = 74,984.67

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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.