Home / 124,841.52-172,285.38-71,128.80

Finding the Fourth Proportional to 124,841.52, 172,285.38 and 71,128.80

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Solution

The fourth proportional to 124,841.52, 172,285.38 and 71,128.80 is: 98,160.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,841.52 : 172,285.38 = 71,128.80 : x
  2. Step 2: Convert to fraction form
    124,841.52/172,285.38 = 71,128.80/x
  3. Step 3: Cross multiply
    124,841.52x = 172,285.38 × 71,128.80
  4. Step 4: Simplify right side
    124,841.52x = 12,254,452,336.94
  5. Step 5: Solve for x
    x = 12,254,452,336.94/124,841.52
  6. Step 6: Final answer
    x = 98,160.07

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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.