Home / 160,788.18-221,988.02-103,526.78

Finding the Fourth Proportional to 160,788.18, 221,988.02 and 103,526.78

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Solution

The fourth proportional to 160,788.18, 221,988.02 and 103,526.78 is: 142,931.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,788.18 : 221,988.02 = 103,526.78 : x
  2. Step 2: Convert to fraction form
    160,788.18/221,988.02 = 103,526.78/x
  3. Step 3: Cross multiply
    160,788.18x = 221,988.02 × 103,526.78
  4. Step 4: Simplify right side
    160,788.18x = 22,981,704,909.18
  5. Step 5: Solve for x
    x = 22,981,704,909.18/160,788.18
  6. Step 6: Final answer
    x = 142,931.56

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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.