Home / 102,454.84-141,390.18-57,132.38

Finding the Fourth Proportional to 102,454.84, 141,390.18 and 57,132.38

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Solution

The fourth proportional to 102,454.84, 141,390.18 and 57,132.38 is: 78,844.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,454.84 : 141,390.18 = 57,132.38 : x
  2. Step 2: Convert to fraction form
    102,454.84/141,390.18 = 57,132.38/x
  3. Step 3: Cross multiply
    102,454.84x = 141,390.18 × 57,132.38
  4. Step 4: Simplify right side
    102,454.84x = 8,077,957,492.03
  5. Step 5: Solve for x
    x = 8,077,957,492.03/102,454.84
  6. Step 6: Final answer
    x = 78,844.08

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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.