Home / 88,032.20-132,048.30-78,009.80

Finding the Fourth Proportional to 88,032.20, 132,048.30 and 78,009.80

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Solution

The fourth proportional to 88,032.20, 132,048.30 and 78,009.80 is: 117,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,032.20 : 132,048.30 = 78,009.80 : x
  2. Step 2: Convert to fraction form
    88,032.20/132,048.30 = 78,009.80/x
  3. Step 3: Cross multiply
    88,032.20x = 132,048.30 × 78,009.80
  4. Step 4: Simplify right side
    88,032.20x = 10,301,061,473.34
  5. Step 5: Solve for x
    x = 10,301,061,473.34/88,032.20
  6. Step 6: Final answer
    x = 117,014.70

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1.5x scale

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.