Home / 109,619.04-151,266.96-61,874.40

Finding the Fourth Proportional to 109,619.04, 151,266.96 and 61,874.40

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Solution

The fourth proportional to 109,619.04, 151,266.96 and 61,874.40 is: 85,382.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,619.04 : 151,266.96 = 61,874.40 : x
  2. Step 2: Convert to fraction form
    109,619.04/151,266.96 = 61,874.40/x
  3. Step 3: Cross multiply
    109,619.04x = 151,266.96 × 61,874.40
  4. Step 4: Simplify right side
    109,619.04x = 9,359,552,389.82
  5. Step 5: Solve for x
    x = 9,359,552,389.82/109,619.04
  6. Step 6: Final answer
    x = 85,382.54

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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.