Home / 115,207.84-172,569.20-52,930.72

Finding the Fourth Proportional to 115,207.84, 172,569.20 and 52,930.72

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Solution

The fourth proportional to 115,207.84, 172,569.20 and 52,930.72 is: 79,284.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,207.84 : 172,569.20 = 52,930.72 : x
  2. Step 2: Convert to fraction form
    115,207.84/172,569.20 = 52,930.72/x
  3. Step 3: Cross multiply
    115,207.84x = 172,569.20 × 52,930.72
  4. Step 4: Simplify right side
    115,207.84x = 9,134,212,005.82
  5. Step 5: Solve for x
    x = 9,134,212,005.82/115,207.84
  6. Step 6: Final answer
    x = 79,284.64

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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.