Home / 104,902.78-144,767.50-57,156.12

Finding the Fourth Proportional to 104,902.78, 144,767.50 and 57,156.12

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Solution

The fourth proportional to 104,902.78, 144,767.50 and 57,156.12 is: 78,876.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,902.78 : 144,767.50 = 57,156.12 : x
  2. Step 2: Convert to fraction form
    104,902.78/144,767.50 = 57,156.12/x
  3. Step 3: Cross multiply
    104,902.78x = 144,767.50 × 57,156.12
  4. Step 4: Simplify right side
    104,902.78x = 8,274,348,602.10
  5. Step 5: Solve for x
    x = 8,274,348,602.10/104,902.78
  6. Step 6: Final answer
    x = 78,876.35

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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.