Home / 142,426.72-213,358.29-115,802.43

Finding the Fourth Proportional to 142,426.72, 213,358.29 and 115,802.43

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Solution

The fourth proportional to 142,426.72, 213,358.29 and 115,802.43 is: 173,474.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,426.72 : 213,358.29 = 115,802.43 : x
  2. Step 2: Convert to fraction form
    142,426.72/213,358.29 = 115,802.43/x
  3. Step 3: Cross multiply
    142,426.72x = 213,358.29 × 115,802.43
  4. Step 4: Simplify right side
    142,426.72x = 24,707,408,442.64
  5. Step 5: Solve for x
    x = 24,707,408,442.64/142,426.72
  6. Step 6: Final answer
    x = 173,474.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.