Home / 148,645.89-205,117.65-88,206.12

Finding the Fourth Proportional to 148,645.89, 205,117.65 and 88,206.12

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Solution

The fourth proportional to 148,645.89, 205,117.65 and 88,206.12 is: 121,716.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,645.89 : 205,117.65 = 88,206.12 : x
  2. Step 2: Convert to fraction form
    148,645.89/205,117.65 = 88,206.12/x
  3. Step 3: Cross multiply
    148,645.89x = 205,117.65 × 88,206.12
  4. Step 4: Simplify right side
    148,645.89x = 18,092,632,050.02
  5. Step 5: Solve for x
    x = 18,092,632,050.02/148,645.89
  6. Step 6: Final answer
    x = 121,716.33

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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.