Home / 135,856.29-187,504.02-79,267.53

Finding the Fourth Proportional to 135,856.29, 187,504.02 and 79,267.53

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Solution

The fourth proportional to 135,856.29, 187,504.02 and 79,267.53 is: 109,402.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,856.29 : 187,504.02 = 79,267.53 : x
  2. Step 2: Convert to fraction form
    135,856.29/187,504.02 = 79,267.53/x
  3. Step 3: Cross multiply
    135,856.29x = 187,504.02 × 79,267.53
  4. Step 4: Simplify right side
    135,856.29x = 14,862,980,530.47
  5. Step 5: Solve for x
    x = 14,862,980,530.47/135,856.29
  6. Step 6: Final answer
    x = 109,402.23

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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.