Home / 161,068.52-222,385.77-100,666.33

Finding the Fourth Proportional to 161,068.52, 222,385.77 and 100,666.33

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Solution

The fourth proportional to 161,068.52, 222,385.77 and 100,666.33 is: 138,989.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,068.52 : 222,385.77 = 100,666.33 : x
  2. Step 2: Convert to fraction form
    161,068.52/222,385.77 = 100,666.33/x
  3. Step 3: Cross multiply
    161,068.52x = 222,385.77 × 100,666.33
  4. Step 4: Simplify right side
    161,068.52x = 22,386,758,754.16
  5. Step 5: Solve for x
    x = 22,386,758,754.16/161,068.52
  6. Step 6: Final answer
    x = 138,989.04

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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.