Home / 131,432.02-181,376-74,843.39

Finding the Fourth Proportional to 131,432.02, 181,376 and 74,843.39

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Solution

The fourth proportional to 131,432.02, 181,376 and 74,843.39 is: 103,283.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,432.02 : 181,376 = 74,843.39 : x
  2. Step 2: Convert to fraction form
    131,432.02/181,376 = 74,843.39/x
  3. Step 3: Cross multiply
    131,432.02x = 181,376 × 74,843.39
  4. Step 4: Simplify right side
    131,432.02x = 13,574,794,704.64
  5. Step 5: Solve for x
    x = 13,574,794,704.64/131,432.02
  6. Step 6: Final answer
    x = 103,283.77

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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.