Home / 99,732.02-137,642.98-57,298.76

Finding the Fourth Proportional to 99,732.02, 137,642.98 and 57,298.76

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Solution

The fourth proportional to 99,732.02, 137,642.98 and 57,298.76 is: 79,079.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,732.02 : 137,642.98 = 57,298.76 : x
  2. Step 2: Convert to fraction form
    99,732.02/137,642.98 = 57,298.76/x
  3. Step 3: Cross multiply
    99,732.02x = 137,642.98 × 57,298.76
  4. Step 4: Simplify right side
    99,732.02x = 7,886,772,076.70
  5. Step 5: Solve for x
    x = 7,886,772,076.70/99,732.02
  6. Step 6: Final answer
    x = 79,079.64

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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.