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Finding the Fourth Proportional to 147,430.80, 220,635.90 and 88,308.90

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Solution

The fourth proportional to 147,430.80, 220,635.90 and 88,308.90 is: 132,157.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,430.80 : 220,635.90 = 88,308.90 : x
  2. Step 2: Convert to fraction form
    147,430.80/220,635.90 = 88,308.90/x
  3. Step 3: Cross multiply
    147,430.80x = 220,635.90 × 88,308.90
  4. Step 4: Simplify right side
    147,430.80x = 19,484,113,629.51
  5. Step 5: Solve for x
    x = 19,484,113,629.51/147,430.80
  6. Step 6: Final answer
    x = 132,157.69

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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.