Home / 131,019.54-180,807.57-74,434.02

Finding the Fourth Proportional to 131,019.54, 180,807.57 and 74,434.02

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Solution

The fourth proportional to 131,019.54, 180,807.57 and 74,434.02 is: 102,719.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,019.54 : 180,807.57 = 74,434.02 : x
  2. Step 2: Convert to fraction form
    131,019.54/180,807.57 = 74,434.02/x
  3. Step 3: Cross multiply
    131,019.54x = 180,807.57 × 74,434.02
  4. Step 4: Simplify right side
    131,019.54x = 13,458,234,281.53
  5. Step 5: Solve for x
    x = 13,458,234,281.53/131,019.54
  6. Step 6: Final answer
    x = 102,719.29

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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.