Home / 160,026.81-240,190.87-81,197.61

Finding the Fourth Proportional to 160,026.81, 240,190.87 and 81,197.61

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Solution

The fourth proportional to 160,026.81, 240,190.87 and 81,197.61 is: 121,872.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,026.81 : 240,190.87 = 81,197.61 : x
  2. Step 2: Convert to fraction form
    160,026.81/240,190.87 = 81,197.61/x
  3. Step 3: Cross multiply
    160,026.81x = 240,190.87 × 81,197.61
  4. Step 4: Simplify right side
    160,026.81x = 19,502,924,587.82
  5. Step 5: Solve for x
    x = 19,502,924,587.82/160,026.81
  6. Step 6: Final answer
    x = 121,872.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.