Home / 161,017.72-222,205.28-100,623.48

Finding the Fourth Proportional to 161,017.72, 222,205.28 and 100,623.48

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Solution

The fourth proportional to 161,017.72, 222,205.28 and 100,623.48 is: 138,860.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,017.72 : 222,205.28 = 100,623.48 : x
  2. Step 2: Convert to fraction form
    161,017.72/222,205.28 = 100,623.48/x
  3. Step 3: Cross multiply
    161,017.72x = 222,205.28 × 100,623.48
  4. Step 4: Simplify right side
    161,017.72x = 22,359,068,547.97
  5. Step 5: Solve for x
    x = 22,359,068,547.97/161,017.72
  6. Step 6: Final answer
    x = 138,860.92

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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.