Home / 205,586.02-283,719.54-125,000.20

Finding the Fourth Proportional to 205,586.02, 283,719.54 and 125,000.20

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Solution

The fourth proportional to 205,586.02, 283,719.54 and 125,000.20 is: 172,506.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,586.02 : 283,719.54 = 125,000.20 : x
  2. Step 2: Convert to fraction form
    205,586.02/283,719.54 = 125,000.20/x
  3. Step 3: Cross multiply
    205,586.02x = 283,719.54 × 125,000.20
  4. Step 4: Simplify right side
    205,586.02x = 35,464,999,243.91
  5. Step 5: Solve for x
    x = 35,464,999,243.91/205,586.02
  6. Step 6: Final answer
    x = 172,506.86

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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.