Home / 148,947.73-205,547.47-80,964.70

Finding the Fourth Proportional to 148,947.73, 205,547.47 and 80,964.70

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Solution

The fourth proportional to 148,947.73, 205,547.47 and 80,964.70 is: 111,731.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,947.73 : 205,547.47 = 80,964.70 : x
  2. Step 2: Convert to fraction form
    148,947.73/205,547.47 = 80,964.70/x
  3. Step 3: Cross multiply
    148,947.73x = 205,547.47 × 80,964.70
  4. Step 4: Simplify right side
    148,947.73x = 16,642,089,244.31
  5. Step 5: Solve for x
    x = 16,642,089,244.31/148,947.73
  6. Step 6: Final answer
    x = 111,731.07

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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.