Home / 439,629.40-659,445.18-124,086.16

Finding the Fourth Proportional to 439,629.40, 659,445.18 and 124,086.16

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Solution

The fourth proportional to 439,629.40, 659,445.18 and 124,086.16 is: 186,129.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,629.40 : 659,445.18 = 124,086.16 : x
  2. Step 2: Convert to fraction form
    439,629.40/659,445.18 = 124,086.16/x
  3. Step 3: Cross multiply
    439,629.40x = 659,445.18 × 124,086.16
  4. Step 4: Simplify right side
    439,629.40x = 81,828,020,116.71
  5. Step 5: Solve for x
    x = 81,828,020,116.71/439,629.40
  6. Step 6: Final answer
    x = 186,129.54

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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.