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Finding the Fourth Proportional to 147,386.70, 220,950.45 and 88,245.90

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Solution

The fourth proportional to 147,386.70, 220,950.45 and 88,245.90 is: 132,291.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,386.70 : 220,950.45 = 88,245.90 : x
  2. Step 2: Convert to fraction form
    147,386.70/220,950.45 = 88,245.90/x
  3. Step 3: Cross multiply
    147,386.70x = 220,950.45 × 88,245.90
  4. Step 4: Simplify right side
    147,386.70x = 19,497,971,315.66
  5. Step 5: Solve for x
    x = 19,497,971,315.66/147,386.70
  6. Step 6: Final answer
    x = 132,291.25

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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.