Home / 104,902.02-144,764.70-57,155.76

Finding the Fourth Proportional to 104,902.02, 144,764.70 and 57,155.76

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Solution

The fourth proportional to 104,902.02, 144,764.70 and 57,155.76 is: 78,874.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,902.02 : 144,764.70 = 57,155.76 : x
  2. Step 2: Convert to fraction form
    104,902.02/144,764.70 = 57,155.76/x
  3. Step 3: Cross multiply
    104,902.02x = 144,764.70 × 57,155.76
  4. Step 4: Simplify right side
    104,902.02x = 8,274,136,449.67
  5. Step 5: Solve for x
    x = 8,274,136,449.67/104,902.02
  6. Step 6: Final answer
    x = 78,874.90

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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.