Home / 97,315.55-145,973.33-81,569.15

Finding the Fourth Proportional to 97,315.55, 145,973.33 and 81,569.15

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Solution

The fourth proportional to 97,315.55, 145,973.33 and 81,569.15 is: 122,353.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,315.55 : 145,973.33 = 81,569.15 : x
  2. Step 2: Convert to fraction form
    97,315.55/145,973.33 = 81,569.15/x
  3. Step 3: Cross multiply
    97,315.55x = 145,973.33 × 81,569.15
  4. Step 4: Simplify right side
    97,315.55x = 11,906,920,042.92
  5. Step 5: Solve for x
    x = 11,906,920,042.92/97,315.55
  6. Step 6: Final answer
    x = 122,353.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.