Home / 163,439.64-225,541.49-90,842.18

Finding the Fourth Proportional to 163,439.64, 225,541.49 and 90,842.18

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Solution

The fourth proportional to 163,439.64, 225,541.49 and 90,842.18 is: 125,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,439.64 : 225,541.49 = 90,842.18 : x
  2. Step 2: Convert to fraction form
    163,439.64/225,541.49 = 90,842.18/x
  3. Step 3: Cross multiply
    163,439.64x = 225,541.49 × 90,842.18
  4. Step 4: Simplify right side
    163,439.64x = 20,488,679,050.13
  5. Step 5: Solve for x
    x = 20,488,679,050.13/163,439.64
  6. Step 6: Final answer
    x = 125,359.30

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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.