Home / 131,429.52-181,372.55-74,840.89

Finding the Fourth Proportional to 131,429.52, 181,372.55 and 74,840.89

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Solution

The fourth proportional to 131,429.52, 181,372.55 and 74,840.89 is: 103,280.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,429.52 : 181,372.55 = 74,840.89 : x
  2. Step 2: Convert to fraction form
    131,429.52/181,372.55 = 74,840.89/x
  3. Step 3: Cross multiply
    131,429.52x = 181,372.55 × 74,840.89
  4. Step 4: Simplify right side
    131,429.52x = 13,574,083,063.57
  5. Step 5: Solve for x
    x = 13,574,083,063.57/131,429.52
  6. Step 6: Final answer
    x = 103,280.32

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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.