Home / 129,009.60-193,514.40-102,571.20

Finding the Fourth Proportional to 129,009.60, 193,514.40 and 102,571.20

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Solution

The fourth proportional to 129,009.60, 193,514.40 and 102,571.20 is: 153,856.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,009.60 : 193,514.40 = 102,571.20 : x
  2. Step 2: Convert to fraction form
    129,009.60/193,514.40 = 102,571.20/x
  3. Step 3: Cross multiply
    129,009.60x = 193,514.40 × 102,571.20
  4. Step 4: Simplify right side
    129,009.60x = 19,849,004,225.28
  5. Step 5: Solve for x
    x = 19,849,004,225.28/129,009.60
  6. Step 6: Final answer
    x = 153,856.80

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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.