Home / 90,807.24-125,343.84-81,230.22

Finding the Fourth Proportional to 90,807.24, 125,343.84 and 81,230.22

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Solution

The fourth proportional to 90,807.24, 125,343.84 and 81,230.22 is: 112,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,807.24 : 125,343.84 = 81,230.22 : x
  2. Step 2: Convert to fraction form
    90,807.24/125,343.84 = 81,230.22/x
  3. Step 3: Cross multiply
    90,807.24x = 125,343.84 × 81,230.22
  4. Step 4: Simplify right side
    90,807.24x = 10,181,707,698.84
  5. Step 5: Solve for x
    x = 10,181,707,698.84/90,807.24
  6. Step 6: Final answer
    x = 112,124.40

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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.