Home / 94,211.31-129,881.70-75,155.76

Finding the Fourth Proportional to 94,211.31, 129,881.70 and 75,155.76

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Solution

The fourth proportional to 94,211.31, 129,881.70 and 75,155.76 is: 103,611.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,211.31 : 129,881.70 = 75,155.76 : x
  2. Step 2: Convert to fraction form
    94,211.31/129,881.70 = 75,155.76/x
  3. Step 3: Cross multiply
    94,211.31x = 129,881.70 × 75,155.76
  4. Step 4: Simplify right side
    94,211.31x = 9,761,357,873.59
  5. Step 5: Solve for x
    x = 9,761,357,873.59/94,211.31
  6. Step 6: Final answer
    x = 103,611.32

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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.