Home / 108,831.80-163,247.70-61,398.20

Finding the Fourth Proportional to 108,831.80, 163,247.70 and 61,398.20

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Solution

The fourth proportional to 108,831.80, 163,247.70 and 61,398.20 is: 92,097.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,831.80 : 163,247.70 = 61,398.20 : x
  2. Step 2: Convert to fraction form
    108,831.80/163,247.70 = 61,398.20/x
  3. Step 3: Cross multiply
    108,831.80x = 163,247.70 × 61,398.20
  4. Step 4: Simplify right side
    108,831.80x = 10,023,114,934.14
  5. Step 5: Solve for x
    x = 10,023,114,934.14/108,831.80
  6. Step 6: Final answer
    x = 92,097.30

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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.