Home / 230,130.52-317,559.90-128,148.28

Finding the Fourth Proportional to 230,130.52, 317,559.90 and 128,148.28

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Solution

The fourth proportional to 230,130.52, 317,559.90 and 128,148.28 is: 176,833.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,130.52 : 317,559.90 = 128,148.28 : x
  2. Step 2: Convert to fraction form
    230,130.52/317,559.90 = 128,148.28/x
  3. Step 3: Cross multiply
    230,130.52x = 317,559.90 × 128,148.28
  4. Step 4: Simplify right side
    230,130.52x = 40,694,754,981.97
  5. Step 5: Solve for x
    x = 40,694,754,981.97/230,130.52
  6. Step 6: Final answer
    x = 176,833.37

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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.