Home / 230,025.04-317,431.13-128,050.31

Finding the Fourth Proportional to 230,025.04, 317,431.13 and 128,050.31

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Solution

The fourth proportional to 230,025.04, 317,431.13 and 128,050.31 is: 176,707.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,025.04 : 317,431.13 = 128,050.31 : x
  2. Step 2: Convert to fraction form
    230,025.04/317,431.13 = 128,050.31/x
  3. Step 3: Cross multiply
    230,025.04x = 317,431.13 × 128,050.31
  4. Step 4: Simplify right side
    230,025.04x = 40,647,153,959.90
  5. Step 5: Solve for x
    x = 40,647,153,959.90/230,025.04
  6. Step 6: Final answer
    x = 176,707.52

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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.