Home / 109,097.02-150,555.41-81,825.13

Finding the Fourth Proportional to 109,097.02, 150,555.41 and 81,825.13

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Solution

The fourth proportional to 109,097.02, 150,555.41 and 81,825.13 is: 112,919.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,097.02 : 150,555.41 = 81,825.13 : x
  2. Step 2: Convert to fraction form
    109,097.02/150,555.41 = 81,825.13/x
  3. Step 3: Cross multiply
    109,097.02x = 150,555.41 × 81,825.13
  4. Step 4: Simplify right side
    109,097.02x = 12,319,215,995.45
  5. Step 5: Solve for x
    x = 12,319,215,995.45/109,097.02
  6. Step 6: Final answer
    x = 112,919.82

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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.