Home / 135,742.28-187,318.02-75,312.26

Finding the Fourth Proportional to 135,742.28, 187,318.02 and 75,312.26

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Solution

The fourth proportional to 135,742.28, 187,318.02 and 75,312.26 is: 103,927.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,742.28 : 187,318.02 = 75,312.26 : x
  2. Step 2: Convert to fraction form
    135,742.28/187,318.02 = 75,312.26/x
  3. Step 3: Cross multiply
    135,742.28x = 187,318.02 × 75,312.26
  4. Step 4: Simplify right side
    135,742.28x = 14,107,343,424.93
  5. Step 5: Solve for x
    x = 14,107,343,424.93/135,742.28
  6. Step 6: Final answer
    x = 103,927.41

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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.