Home / 160,724.46-221,805.15-89,100.21

Finding the Fourth Proportional to 160,724.46, 221,805.15 and 89,100.21

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Solution

The fourth proportional to 160,724.46, 221,805.15 and 89,100.21 is: 122,961.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,724.46 : 221,805.15 = 89,100.21 : x
  2. Step 2: Convert to fraction form
    160,724.46/221,805.15 = 89,100.21/x
  3. Step 3: Cross multiply
    160,724.46x = 221,805.15 × 89,100.21
  4. Step 4: Simplify right side
    160,724.46x = 19,762,885,444.08
  5. Step 5: Solve for x
    x = 19,762,885,444.08/160,724.46
  6. Step 6: Final answer
    x = 122,961.28

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1.5x scale

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.