Home / 147,001.42-220,224.65-86,850.41

Finding the Fourth Proportional to 147,001.42, 220,224.65 and 86,850.41

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Solution

The fourth proportional to 147,001.42, 220,224.65 and 86,850.41 is: 130,111.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,001.42 : 220,224.65 = 86,850.41 : x
  2. Step 2: Convert to fraction form
    147,001.42/220,224.65 = 86,850.41/x
  3. Step 3: Cross multiply
    147,001.42x = 220,224.65 × 86,850.41
  4. Step 4: Simplify right side
    147,001.42x = 19,126,601,144.61
  5. Step 5: Solve for x
    x = 19,126,601,144.61/147,001.42
  6. Step 6: Final answer
    x = 130,111.68

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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.