Home / 126,752.40-174,987.60-86,526.12

Finding the Fourth Proportional to 126,752.40, 174,987.60 and 86,526.12

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Solution

The fourth proportional to 126,752.40, 174,987.60 and 86,526.12 is: 119,453.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,752.40 : 174,987.60 = 86,526.12 : x
  2. Step 2: Convert to fraction form
    126,752.40/174,987.60 = 86,526.12/x
  3. Step 3: Cross multiply
    126,752.40x = 174,987.60 × 86,526.12
  4. Step 4: Simplify right side
    126,752.40x = 15,140,998,076.11
  5. Step 5: Solve for x
    x = 15,140,998,076.11/126,752.40
  6. Step 6: Final answer
    x = 119,453.34

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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.