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Finding the Fourth Proportional to 160,003.35, 220,831.11 and 121,888.80

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Solution

The fourth proportional to 160,003.35, 220,831.11 and 121,888.80 is: 168,226.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,003.35 : 220,831.11 = 121,888.80 : x
  2. Step 2: Convert to fraction form
    160,003.35/220,831.11 = 121,888.80/x
  3. Step 3: Cross multiply
    160,003.35x = 220,831.11 × 121,888.80
  4. Step 4: Simplify right side
    160,003.35x = 26,916,839,000.57
  5. Step 5: Solve for x
    x = 26,916,839,000.57/160,003.35
  6. Step 6: Final answer
    x = 168,226.72

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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.