Home / 115,101.60-172,618.38-51,885.24

Finding the Fourth Proportional to 115,101.60, 172,618.38 and 51,885.24

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Solution

The fourth proportional to 115,101.60, 172,618.38 and 51,885.24 is: 77,812.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,101.60 : 172,618.38 = 51,885.24 : x
  2. Step 2: Convert to fraction form
    115,101.60/172,618.38 = 51,885.24/x
  3. Step 3: Cross multiply
    115,101.60x = 172,618.38 × 51,885.24
  4. Step 4: Simplify right side
    115,101.60x = 8,956,346,074.71
  5. Step 5: Solve for x
    x = 8,956,346,074.71/115,101.60
  6. Step 6: Final answer
    x = 77,812.52

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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.