Home / 138,713.18-191,424.29-75,050.82

Finding the Fourth Proportional to 138,713.18, 191,424.29 and 75,050.82

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Solution

The fourth proportional to 138,713.18, 191,424.29 and 75,050.82 is: 103,570.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,713.18 : 191,424.29 = 75,050.82 : x
  2. Step 2: Convert to fraction form
    138,713.18/191,424.29 = 75,050.82/x
  3. Step 3: Cross multiply
    138,713.18x = 191,424.29 × 75,050.82
  4. Step 4: Simplify right side
    138,713.18x = 14,366,549,557.16
  5. Step 5: Solve for x
    x = 14,366,549,557.16/138,713.18
  6. Step 6: Final answer
    x = 103,570.19

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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.