Home / 124,445.20-171,749.16-78,571.48

Finding the Fourth Proportional to 124,445.20, 171,749.16 and 78,571.48

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Solution

The fourth proportional to 124,445.20, 171,749.16 and 78,571.48 is: 108,437.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,445.20 : 171,749.16 = 78,571.48 : x
  2. Step 2: Convert to fraction form
    124,445.20/171,749.16 = 78,571.48/x
  3. Step 3: Cross multiply
    124,445.20x = 171,749.16 × 78,571.48
  4. Step 4: Simplify right side
    124,445.20x = 13,494,585,689.96
  5. Step 5: Solve for x
    x = 13,494,585,689.96/124,445.20
  6. Step 6: Final answer
    x = 108,437.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.