Home / 102,440.48-141,357.51-57,114.21

Finding the Fourth Proportional to 102,440.48, 141,357.51 and 57,114.21

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Solution

The fourth proportional to 102,440.48, 141,357.51 and 57,114.21 is: 78,811.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,440.48 : 141,357.51 = 57,114.21 : x
  2. Step 2: Convert to fraction form
    102,440.48/141,357.51 = 57,114.21/x
  3. Step 3: Cross multiply
    102,440.48x = 141,357.51 × 57,114.21
  4. Step 4: Simplify right side
    102,440.48x = 8,073,522,511.22
  5. Step 5: Solve for x
    x = 8,073,522,511.22/102,440.48
  6. Step 6: Final answer
    x = 78,811.84

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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.