Home / 138,501.60-207,752.40-45,016.80

Finding the Fourth Proportional to 138,501.60, 207,752.40 and 45,016.80

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Solution

The fourth proportional to 138,501.60, 207,752.40 and 45,016.80 is: 67,525.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,501.60 : 207,752.40 = 45,016.80 : x
  2. Step 2: Convert to fraction form
    138,501.60/207,752.40 = 45,016.80/x
  3. Step 3: Cross multiply
    138,501.60x = 207,752.40 × 45,016.80
  4. Step 4: Simplify right side
    138,501.60x = 9,352,348,240.32
  5. Step 5: Solve for x
    x = 9,352,348,240.32/138,501.60
  6. Step 6: Final answer
    x = 67,525.20

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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.