Home / 102,396.22-141,307.45-57,077.08

Finding the Fourth Proportional to 102,396.22, 141,307.45 and 57,077.08

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Solution

The fourth proportional to 102,396.22, 141,307.45 and 57,077.08 is: 78,766.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,396.22 : 141,307.45 = 57,077.08 : x
  2. Step 2: Convert to fraction form
    102,396.22/141,307.45 = 57,077.08/x
  3. Step 3: Cross multiply
    102,396.22x = 141,307.45 × 57,077.08
  4. Step 4: Simplify right side
    102,396.22x = 8,065,416,132.28
  5. Step 5: Solve for x
    x = 8,065,416,132.28/102,396.22
  6. Step 6: Final answer
    x = 78,766.74

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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.