Home / 135,521.88-187,031.28-75,098.56

Finding the Fourth Proportional to 135,521.88, 187,031.28 and 75,098.56

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Solution

The fourth proportional to 135,521.88, 187,031.28 and 75,098.56 is: 103,642.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,521.88 : 187,031.28 = 75,098.56 : x
  2. Step 2: Convert to fraction form
    135,521.88/187,031.28 = 75,098.56/x
  3. Step 3: Cross multiply
    135,521.88x = 187,031.28 × 75,098.56
  4. Step 4: Simplify right side
    135,521.88x = 14,045,779,802.96
  5. Step 5: Solve for x
    x = 14,045,779,802.96/135,521.88
  6. Step 6: Final answer
    x = 103,642.16

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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.