Home / 195,128.40-292,352.40-89,731.20

Finding the Fourth Proportional to 195,128.40, 292,352.40 and 89,731.20

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Solution

The fourth proportional to 195,128.40, 292,352.40 and 89,731.20 is: 134,440.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,128.40 : 292,352.40 = 89,731.20 : x
  2. Step 2: Convert to fraction form
    195,128.40/292,352.40 = 89,731.20/x
  3. Step 3: Cross multiply
    195,128.40x = 292,352.40 × 89,731.20
  4. Step 4: Simplify right side
    195,128.40x = 26,233,131,674.88
  5. Step 5: Solve for x
    x = 26,233,131,674.88/195,128.40
  6. Step 6: Final answer
    x = 134,440.36

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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.