Home / 140,321.23-193,652.21-79,897.15

Finding the Fourth Proportional to 140,321.23, 193,652.21 and 79,897.15

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Solution

The fourth proportional to 140,321.23, 193,652.21 and 79,897.15 is: 110,263.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,321.23 : 193,652.21 = 79,897.15 : x
  2. Step 2: Convert to fraction form
    140,321.23/193,652.21 = 79,897.15/x
  3. Step 3: Cross multiply
    140,321.23x = 193,652.21 × 79,897.15
  4. Step 4: Simplify right side
    140,321.23x = 15,472,259,385.81
  5. Step 5: Solve for x
    x = 15,472,259,385.81/140,321.23
  6. Step 6: Final answer
    x = 110,263.14

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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.