Home / 135,587.28-187,090.80-75,157.91

Finding the Fourth Proportional to 135,587.28, 187,090.80 and 75,157.91

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Solution

The fourth proportional to 135,587.28, 187,090.80 and 75,157.91 is: 103,707.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,587.28 : 187,090.80 = 75,157.91 : x
  2. Step 2: Convert to fraction form
    135,587.28/187,090.80 = 75,157.91/x
  3. Step 3: Cross multiply
    135,587.28x = 187,090.80 × 75,157.91
  4. Step 4: Simplify right side
    135,587.28x = 14,061,352,572.77
  5. Step 5: Solve for x
    x = 14,061,352,572.77/135,587.28
  6. Step 6: Final answer
    x = 103,707.02

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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.