Home / 112,359.98-155,055.85-61,372.75

Finding the Fourth Proportional to 112,359.98, 155,055.85 and 61,372.75

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Solution

The fourth proportional to 112,359.98, 155,055.85 and 61,372.75 is: 84,693.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,359.98 : 155,055.85 = 61,372.75 : x
  2. Step 2: Convert to fraction form
    112,359.98/155,055.85 = 61,372.75/x
  3. Step 3: Cross multiply
    112,359.98x = 155,055.85 × 61,372.75
  4. Step 4: Simplify right side
    112,359.98x = 9,516,203,918.09
  5. Step 5: Solve for x
    x = 9,516,203,918.09/112,359.98
  6. Step 6: Final answer
    x = 84,693.89

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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.