Home / 132,619.32-183,017-72,191.70

Finding the Fourth Proportional to 132,619.32, 183,017 and 72,191.70

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Solution

The fourth proportional to 132,619.32, 183,017 and 72,191.70 is: 99,625.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,619.32 : 183,017 = 72,191.70 : x
  2. Step 2: Convert to fraction form
    132,619.32/183,017 = 72,191.70/x
  3. Step 3: Cross multiply
    132,619.32x = 183,017 × 72,191.70
  4. Step 4: Simplify right side
    132,619.32x = 13,212,308,358.90
  5. Step 5: Solve for x
    x = 13,212,308,358.90/132,619.32
  6. Step 6: Final answer
    x = 99,625.82

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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.