Home / 138,672.07-191,366.55-75,008.50

Finding the Fourth Proportional to 138,672.07, 191,366.55 and 75,008.50

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Solution

The fourth proportional to 138,672.07, 191,366.55 and 75,008.50 is: 103,511.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,672.07 : 191,366.55 = 75,008.50 : x
  2. Step 2: Convert to fraction form
    138,672.07/191,366.55 = 75,008.50/x
  3. Step 3: Cross multiply
    138,672.07x = 191,366.55 × 75,008.50
  4. Step 4: Simplify right side
    138,672.07x = 14,354,117,387.26
  5. Step 5: Solve for x
    x = 14,354,117,387.26/138,672.07
  6. Step 6: Final answer
    x = 103,511.24

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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.