Home / 101,772.02-140,445.42-57,060.02

Finding the Fourth Proportional to 101,772.02, 140,445.42 and 57,060.02

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Solution

The fourth proportional to 101,772.02, 140,445.42 and 57,060.02 is: 78,742.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,772.02 : 140,445.42 = 57,060.02 : x
  2. Step 2: Convert to fraction form
    101,772.02/140,445.42 = 57,060.02/x
  3. Step 3: Cross multiply
    101,772.02x = 140,445.42 × 57,060.02
  4. Step 4: Simplify right side
    101,772.02x = 8,013,818,474.11
  5. Step 5: Solve for x
    x = 8,013,818,474.11/101,772.02
  6. Step 6: Final answer
    x = 78,742.85

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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.