Home / 138,829.74-191,585.43-75,167.34

Finding the Fourth Proportional to 138,829.74, 191,585.43 and 75,167.34

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Solution

The fourth proportional to 138,829.74, 191,585.43 and 75,167.34 is: 103,731.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,829.74 : 191,585.43 = 75,167.34 : x
  2. Step 2: Convert to fraction form
    138,829.74/191,585.43 = 75,167.34/x
  3. Step 3: Cross multiply
    138,829.74x = 191,585.43 × 75,167.34
  4. Step 4: Simplify right side
    138,829.74x = 14,400,967,155.86
  5. Step 5: Solve for x
    x = 14,400,967,155.86/138,829.74
  6. Step 6: Final answer
    x = 103,731.14

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1.5x scale

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.