Home / 154,190.27-212,790.69-93,750.90

Finding the Fourth Proportional to 154,190.27, 212,790.69 and 93,750.90

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Solution

The fourth proportional to 154,190.27, 212,790.69 and 93,750.90 is: 129,381.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,190.27 : 212,790.69 = 93,750.90 : x
  2. Step 2: Convert to fraction form
    154,190.27/212,790.69 = 93,750.90/x
  3. Step 3: Cross multiply
    154,190.27x = 212,790.69 × 93,750.90
  4. Step 4: Simplify right side
    154,190.27x = 19,949,318,699.12
  5. Step 5: Solve for x
    x = 19,949,318,699.12/154,190.27
  6. Step 6: Final answer
    x = 129,381.18

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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.