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Finding the Fourth Proportional to 160,019.15, 220,823.25 and 88,398.50

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Solution

The fourth proportional to 160,019.15, 220,823.25 and 88,398.50 is: 121,988.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,019.15 : 220,823.25 = 88,398.50 : x
  2. Step 2: Convert to fraction form
    160,019.15/220,823.25 = 88,398.50/x
  3. Step 3: Cross multiply
    160,019.15x = 220,823.25 × 88,398.50
  4. Step 4: Simplify right side
    160,019.15x = 19,520,444,065.13
  5. Step 5: Solve for x
    x = 19,520,444,065.13/160,019.15
  6. Step 6: Final answer
    x = 121,988.17

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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.