Home / 160,972.47-222,142.86-100,578.13

Finding the Fourth Proportional to 160,972.47, 222,142.86 and 100,578.13

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Solution

The fourth proportional to 160,972.47, 222,142.86 and 100,578.13 is: 138,798.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,972.47 : 222,142.86 = 100,578.13 : x
  2. Step 2: Convert to fraction form
    160,972.47/222,142.86 = 100,578.13/x
  3. Step 3: Cross multiply
    160,972.47x = 222,142.86 × 100,578.13
  4. Step 4: Simplify right side
    160,972.47x = 22,342,714,428.72
  5. Step 5: Solve for x
    x = 22,342,714,428.72/160,972.47
  6. Step 6: Final answer
    x = 138,798.36

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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.