Home / 119,755.20-179,632.80-82,430.40

Finding the Fourth Proportional to 119,755.20, 179,632.80 and 82,430.40

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Solution

The fourth proportional to 119,755.20, 179,632.80 and 82,430.40 is: 123,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,755.20 : 179,632.80 = 82,430.40 : x
  2. Step 2: Convert to fraction form
    119,755.20/179,632.80 = 82,430.40/x
  3. Step 3: Cross multiply
    119,755.20x = 179,632.80 × 82,430.40
  4. Step 4: Simplify right side
    119,755.20x = 14,807,203,557.12
  5. Step 5: Solve for x
    x = 14,807,203,557.12/119,755.20
  6. Step 6: Final answer
    x = 123,645.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.