Home / 115,559.42-173,043.20-79,971.46

Finding the Fourth Proportional to 115,559.42, 173,043.20 and 79,971.46

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Solution

The fourth proportional to 115,559.42, 173,043.20 and 79,971.46 is: 119,752.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,559.42 : 173,043.20 = 79,971.46 : x
  2. Step 2: Convert to fraction form
    115,559.42/173,043.20 = 79,971.46/x
  3. Step 3: Cross multiply
    115,559.42x = 173,043.20 × 79,971.46
  4. Step 4: Simplify right side
    115,559.42x = 13,838,516,514.61
  5. Step 5: Solve for x
    x = 13,838,516,514.61/115,559.42
  6. Step 6: Final answer
    x = 119,752.39

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1.5x scale

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.