Home / 148,899.12-205,482.06-80,916.08

Finding the Fourth Proportional to 148,899.12, 205,482.06 and 80,916.08

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Solution

The fourth proportional to 148,899.12, 205,482.06 and 80,916.08 is: 111,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,899.12 : 205,482.06 = 80,916.08 : x
  2. Step 2: Convert to fraction form
    148,899.12/205,482.06 = 80,916.08/x
  3. Step 3: Cross multiply
    148,899.12x = 205,482.06 × 80,916.08
  4. Step 4: Simplify right side
    148,899.12x = 16,626,802,805.52
  5. Step 5: Solve for x
    x = 16,626,802,805.52/148,899.12
  6. Step 6: Final answer
    x = 111,664.88

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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.