Home / 160,839.87-221,985.59-89,242.95

Finding the Fourth Proportional to 160,839.87, 221,985.59 and 89,242.95

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Solution

The fourth proportional to 160,839.87, 221,985.59 and 89,242.95 is: 123,170.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,839.87 : 221,985.59 = 89,242.95 : x
  2. Step 2: Convert to fraction form
    160,839.87/221,985.59 = 89,242.95/x
  3. Step 3: Cross multiply
    160,839.87x = 221,985.59 × 89,242.95
  4. Step 4: Simplify right side
    160,839.87x = 19,810,648,909.09
  5. Step 5: Solve for x
    x = 19,810,648,909.09/160,839.87
  6. Step 6: Final answer
    x = 123,170.01

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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.