Home / 156,372.09-215,806.93-88,401.20

Finding the Fourth Proportional to 156,372.09, 215,806.93 and 88,401.20

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Solution

The fourth proportional to 156,372.09, 215,806.93 and 88,401.20 is: 122,001.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,372.09 : 215,806.93 = 88,401.20 : x
  2. Step 2: Convert to fraction form
    156,372.09/215,806.93 = 88,401.20/x
  3. Step 3: Cross multiply
    156,372.09x = 215,806.93 × 88,401.20
  4. Step 4: Simplify right side
    156,372.09x = 19,077,591,384.49
  5. Step 5: Solve for x
    x = 19,077,591,384.49/156,372.09
  6. Step 6: Final answer
    x = 122,001.25

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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.