Home / 103,929.60-156,009.60-64,531.20

Finding the Fourth Proportional to 103,929.60, 156,009.60 and 64,531.20

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Solution

The fourth proportional to 103,929.60, 156,009.60 and 64,531.20 is: 96,868.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,929.60 : 156,009.60 = 64,531.20 : x
  2. Step 2: Convert to fraction form
    103,929.60/156,009.60 = 64,531.20/x
  3. Step 3: Cross multiply
    103,929.60x = 156,009.60 × 64,531.20
  4. Step 4: Simplify right side
    103,929.60x = 10,067,486,699.52
  5. Step 5: Solve for x
    x = 10,067,486,699.52/103,929.60
  6. Step 6: Final answer
    x = 96,868.33

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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.