Home / 99,637.20-137,219.40-97,459.92

Finding the Fourth Proportional to 99,637.20, 137,219.40 and 97,459.92

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Solution

The fourth proportional to 99,637.20, 137,219.40 and 97,459.92 is: 134,220.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,637.20 : 137,219.40 = 97,459.92 : x
  2. Step 2: Convert to fraction form
    99,637.20/137,219.40 = 97,459.92/x
  3. Step 3: Cross multiply
    99,637.20x = 137,219.40 × 97,459.92
  4. Step 4: Simplify right side
    99,637.20x = 13,373,391,746.45
  5. Step 5: Solve for x
    x = 13,373,391,746.45/99,637.20
  6. Step 6: Final answer
    x = 134,220.87

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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.