Home / 135,828.34-187,442.28-75,407.74

Finding the Fourth Proportional to 135,828.34, 187,442.28 and 75,407.74

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Solution

The fourth proportional to 135,828.34, 187,442.28 and 75,407.74 is: 104,062.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,828.34 : 187,442.28 = 75,407.74 : x
  2. Step 2: Convert to fraction form
    135,828.34/187,442.28 = 75,407.74/x
  3. Step 3: Cross multiply
    135,828.34x = 187,442.28 × 75,407.74
  4. Step 4: Simplify right side
    135,828.34x = 14,134,598,715.25
  5. Step 5: Solve for x
    x = 14,134,598,715.25/135,828.34
  6. Step 6: Final answer
    x = 104,062.22

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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.