Home / 230,339.20-317,862.24-128,365.12

Finding the Fourth Proportional to 230,339.20, 317,862.24 and 128,365.12

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Solution

The fourth proportional to 230,339.20, 317,862.24 and 128,365.12 is: 177,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,339.20 : 317,862.24 = 128,365.12 : x
  2. Step 2: Convert to fraction form
    230,339.20/317,862.24 = 128,365.12/x
  3. Step 3: Cross multiply
    230,339.20x = 317,862.24 × 128,365.12
  4. Step 4: Simplify right side
    230,339.20x = 40,802,424,581.07
  5. Step 5: Solve for x
    x = 40,802,424,581.07/230,339.20
  6. Step 6: Final answer
    x = 177,140.60

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1.5x scale

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.