Home / 113,805.20-170,707.80-76,480.40

Finding the Fourth Proportional to 113,805.20, 170,707.80 and 76,480.40

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Solution

The fourth proportional to 113,805.20, 170,707.80 and 76,480.40 is: 114,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,805.20 : 170,707.80 = 76,480.40 : x
  2. Step 2: Convert to fraction form
    113,805.20/170,707.80 = 76,480.40/x
  3. Step 3: Cross multiply
    113,805.20x = 170,707.80 × 76,480.40
  4. Step 4: Simplify right side
    113,805.20x = 13,055,800,827.12
  5. Step 5: Solve for x
    x = 13,055,800,827.12/113,805.20
  6. Step 6: Final answer
    x = 114,720.60

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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.