Home / 230,045.22-317,456.20-128,070.69

Finding the Fourth Proportional to 230,045.22, 317,456.20 and 128,070.69

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Solution

The fourth proportional to 230,045.22, 317,456.20 and 128,070.69 is: 176,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,045.22 : 317,456.20 = 128,070.69 : x
  2. Step 2: Convert to fraction form
    230,045.22/317,456.20 = 128,070.69/x
  3. Step 3: Cross multiply
    230,045.22x = 317,456.20 × 128,070.69
  4. Step 4: Simplify right side
    230,045.22x = 40,656,834,578.78
  5. Step 5: Solve for x
    x = 40,656,834,578.78/230,045.22
  6. Step 6: Final answer
    x = 176,734.10

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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.