Home / 135,013.50-186,318.72-75,397.50

Finding the Fourth Proportional to 135,013.50, 186,318.72 and 75,397.50

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Solution

The fourth proportional to 135,013.50, 186,318.72 and 75,397.50 is: 104,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,013.50 : 186,318.72 = 75,397.50 : x
  2. Step 2: Convert to fraction form
    135,013.50/186,318.72 = 75,397.50/x
  3. Step 3: Cross multiply
    135,013.50x = 186,318.72 × 75,397.50
  4. Step 4: Simplify right side
    135,013.50x = 14,047,965,691.20
  5. Step 5: Solve for x
    x = 14,047,965,691.20/135,013.50
  6. Step 6: Final answer
    x = 104,048.60

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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.