Home / 454,543.02-681,748.88-138,915.18

Finding the Fourth Proportional to 454,543.02, 681,748.88 and 138,915.18

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Solution

The fourth proportional to 454,543.02, 681,748.88 and 138,915.18 is: 208,352.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,543.02 : 681,748.88 = 138,915.18 : x
  2. Step 2: Convert to fraction form
    454,543.02/681,748.88 = 138,915.18/x
  3. Step 3: Cross multiply
    454,543.02x = 681,748.88 × 138,915.18
  4. Step 4: Simplify right side
    454,543.02x = 94,705,268,380.00
  5. Step 5: Solve for x
    x = 94,705,268,380.00/454,543.02
  6. Step 6: Final answer
    x = 208,352.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.