Home / 115,260.28-172,968.20-45,130.84

Finding the Fourth Proportional to 115,260.28, 172,968.20 and 45,130.84

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Solution

The fourth proportional to 115,260.28, 172,968.20 and 45,130.84 is: 67,726.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,260.28 : 172,968.20 = 45,130.84 : x
  2. Step 2: Convert to fraction form
    115,260.28/172,968.20 = 45,130.84/x
  3. Step 3: Cross multiply
    115,260.28x = 172,968.20 × 45,130.84
  4. Step 4: Simplify right side
    115,260.28x = 7,806,200,159.29
  5. Step 5: Solve for x
    x = 7,806,200,159.29/115,260.28
  6. Step 6: Final answer
    x = 67,726.72

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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.