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Finding the Fourth Proportional to 161,858.88, 223,360.65 and 90,237.42

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Solution

The fourth proportional to 161,858.88, 223,360.65 and 90,237.42 is: 124,525.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,858.88 : 223,360.65 = 90,237.42 : x
  2. Step 2: Convert to fraction form
    161,858.88/223,360.65 = 90,237.42/x
  3. Step 3: Cross multiply
    161,858.88x = 223,360.65 × 90,237.42
  4. Step 4: Simplify right side
    161,858.88x = 20,155,488,785.52
  5. Step 5: Solve for x
    x = 20,155,488,785.52/161,858.88
  6. Step 6: Final answer
    x = 124,525.07

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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.