Home / 130,827.60-196,460.10-86,650.20

Finding the Fourth Proportional to 130,827.60, 196,460.10 and 86,650.20

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Solution

The fourth proportional to 130,827.60, 196,460.10 and 86,650.20 is: 130,120.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,827.60 : 196,460.10 = 86,650.20 : x
  2. Step 2: Convert to fraction form
    130,827.60/196,460.10 = 86,650.20/x
  3. Step 3: Cross multiply
    130,827.60x = 196,460.10 × 86,650.20
  4. Step 4: Simplify right side
    130,827.60x = 17,023,306,957.02
  5. Step 5: Solve for x
    x = 17,023,306,957.02/130,827.60
  6. Step 6: Final answer
    x = 130,120.15

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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.