Home / 102,049.03-140,823.29-56,726.92

Finding the Fourth Proportional to 102,049.03, 140,823.29 and 56,726.92

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Solution

The fourth proportional to 102,049.03, 140,823.29 and 56,726.92 is: 78,280.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,049.03 : 140,823.29 = 56,726.92 : x
  2. Step 2: Convert to fraction form
    102,049.03/140,823.29 = 56,726.92/x
  3. Step 3: Cross multiply
    102,049.03x = 140,823.29 × 56,726.92
  4. Step 4: Simplify right side
    102,049.03x = 7,988,471,222.33
  5. Step 5: Solve for x
    x = 7,988,471,222.33/102,049.03
  6. Step 6: Final answer
    x = 78,280.72

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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.