Home / 117,510.52-162,125.88-66,518.20

Finding the Fourth Proportional to 117,510.52, 162,125.88 and 66,518.20

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Solution

The fourth proportional to 117,510.52, 162,125.88 and 66,518.20 is: 91,773.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,510.52 : 162,125.88 = 66,518.20 : x
  2. Step 2: Convert to fraction form
    117,510.52/162,125.88 = 66,518.20/x
  3. Step 3: Cross multiply
    117,510.52x = 162,125.88 × 66,518.20
  4. Step 4: Simplify right side
    117,510.52x = 10,784,321,711.02
  5. Step 5: Solve for x
    x = 10,784,321,711.02/117,510.52
  6. Step 6: Final answer
    x = 91,773.24

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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.