Home / 161,781.02-223,264.26-90,160.40

Finding the Fourth Proportional to 161,781.02, 223,264.26 and 90,160.40

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Solution

The fourth proportional to 161,781.02, 223,264.26 and 90,160.40 is: 124,424.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,781.02 : 223,264.26 = 90,160.40 : x
  2. Step 2: Convert to fraction form
    161,781.02/223,264.26 = 90,160.40/x
  3. Step 3: Cross multiply
    161,781.02x = 223,264.26 × 90,160.40
  4. Step 4: Simplify right side
    161,781.02x = 20,129,594,987.30
  5. Step 5: Solve for x
    x = 20,129,594,987.30/161,781.02
  6. Step 6: Final answer
    x = 124,424.95

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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.