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Finding the Fourth Proportional to 161,854.24, 223,359.84 and 90,238.84

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Solution

The fourth proportional to 161,854.24, 223,359.84 and 90,238.84 is: 124,530.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,854.24 : 223,359.84 = 90,238.84 : x
  2. Step 2: Convert to fraction form
    161,854.24/223,359.84 = 90,238.84/x
  3. Step 3: Cross multiply
    161,854.24x = 223,359.84 × 90,238.84
  4. Step 4: Simplify right side
    161,854.24x = 20,155,732,864.19
  5. Step 5: Solve for x
    x = 20,155,732,864.19/161,854.24
  6. Step 6: Final answer
    x = 124,530.15

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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.