Home / 138,792.56-191,534.68-75,130.52

Finding the Fourth Proportional to 138,792.56, 191,534.68 and 75,130.52

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Solution

The fourth proportional to 138,792.56, 191,534.68 and 75,130.52 is: 103,680.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,792.56 : 191,534.68 = 75,130.52 : x
  2. Step 2: Convert to fraction form
    138,792.56/191,534.68 = 75,130.52/x
  3. Step 3: Cross multiply
    138,792.56x = 191,534.68 × 75,130.52
  4. Step 4: Simplify right side
    138,792.56x = 14,390,100,106.43
  5. Step 5: Solve for x
    x = 14,390,100,106.43/138,792.56
  6. Step 6: Final answer
    x = 103,680.63

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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.