Home / 125,678.43-173,416.89-74,672.28

Finding the Fourth Proportional to 125,678.43, 173,416.89 and 74,672.28

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Solution

The fourth proportional to 125,678.43, 173,416.89 and 74,672.28 is: 103,036.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,678.43 : 173,416.89 = 74,672.28 : x
  2. Step 2: Convert to fraction form
    125,678.43/173,416.89 = 74,672.28/x
  3. Step 3: Cross multiply
    125,678.43x = 173,416.89 × 74,672.28
  4. Step 4: Simplify right side
    125,678.43x = 12,949,434,566.81
  5. Step 5: Solve for x
    x = 12,949,434,566.81/125,678.43
  6. Step 6: Final answer
    x = 103,036.25

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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.