Home / 151,902.09-209,635.43-88,259.85

Finding the Fourth Proportional to 151,902.09, 209,635.43 and 88,259.85

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Solution

The fourth proportional to 151,902.09, 209,635.43 and 88,259.85 is: 121,804.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,902.09 : 209,635.43 = 88,259.85 : x
  2. Step 2: Convert to fraction form
    151,902.09/209,635.43 = 88,259.85/x
  3. Step 3: Cross multiply
    151,902.09x = 209,635.43 × 88,259.85
  4. Step 4: Simplify right side
    151,902.09x = 18,502,391,165.19
  5. Step 5: Solve for x
    x = 18,502,391,165.19/151,902.09
  6. Step 6: Final answer
    x = 121,804.72

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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.