Home / 205,518.02-283,606.17-129,077.06

Finding the Fourth Proportional to 205,518.02, 283,606.17 and 129,077.06

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Solution

The fourth proportional to 205,518.02, 283,606.17 and 129,077.06 is: 178,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,518.02 : 283,606.17 = 129,077.06 : x
  2. Step 2: Convert to fraction form
    205,518.02/283,606.17 = 129,077.06/x
  3. Step 3: Cross multiply
    205,518.02x = 283,606.17 × 129,077.06
  4. Step 4: Simplify right side
    205,518.02x = 36,607,050,621.46
  5. Step 5: Solve for x
    x = 36,607,050,621.46/205,518.02
  6. Step 6: Final answer
    x = 178,120.88

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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.