Home / 154,947.20-232,129.20-79,811.60

Finding the Fourth Proportional to 154,947.20, 232,129.20 and 79,811.60

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Solution

The fourth proportional to 154,947.20, 232,129.20 and 79,811.60 is: 119,567.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,947.20 : 232,129.20 = 79,811.60 : x
  2. Step 2: Convert to fraction form
    154,947.20/232,129.20 = 79,811.60/x
  3. Step 3: Cross multiply
    154,947.20x = 232,129.20 × 79,811.60
  4. Step 4: Simplify right side
    154,947.20x = 18,526,602,858.72
  5. Step 5: Solve for x
    x = 18,526,602,858.72/154,947.20
  6. Step 6: Final answer
    x = 119,567.20

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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.