Home / 103,244.90-154,168.04-81,945.95

Finding the Fourth Proportional to 103,244.90, 154,168.04 and 81,945.95

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Solution

The fourth proportional to 103,244.90, 154,168.04 and 81,945.95 is: 122,363.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,244.90 : 154,168.04 = 81,945.95 : x
  2. Step 2: Convert to fraction form
    103,244.90/154,168.04 = 81,945.95/x
  3. Step 3: Cross multiply
    103,244.90x = 154,168.04 × 81,945.95
  4. Step 4: Simplify right side
    103,244.90x = 12,633,445,931.46
  5. Step 5: Solve for x
    x = 12,633,445,931.46/103,244.90
  6. Step 6: Final answer
    x = 122,363.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.