Home / 135,513.08-187,005.56-75,083.50

Finding the Fourth Proportional to 135,513.08, 187,005.56 and 75,083.50

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Solution

The fourth proportional to 135,513.08, 187,005.56 and 75,083.50 is: 103,613.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,513.08 : 187,005.56 = 75,083.50 : x
  2. Step 2: Convert to fraction form
    135,513.08/187,005.56 = 75,083.50/x
  3. Step 3: Cross multiply
    135,513.08x = 187,005.56 × 75,083.50
  4. Step 4: Simplify right side
    135,513.08x = 14,041,031,964.26
  5. Step 5: Solve for x
    x = 14,041,031,964.26/135,513.08
  6. Step 6: Final answer
    x = 103,613.85

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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.