Home / 161,752.38-223,215.24-90,130.86

Finding the Fourth Proportional to 161,752.38, 223,215.24 and 90,130.86

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Solution

The fourth proportional to 161,752.38, 223,215.24 and 90,130.86 is: 124,378.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,752.38 : 223,215.24 = 90,130.86 : x
  2. Step 2: Convert to fraction form
    161,752.38/223,215.24 = 90,130.86/x
  3. Step 3: Cross multiply
    161,752.38x = 223,215.24 × 90,130.86
  4. Step 4: Simplify right side
    161,752.38x = 20,118,581,546.31
  5. Step 5: Solve for x
    x = 20,118,581,546.31/161,752.38
  6. Step 6: Final answer
    x = 124,378.89

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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.