Home / 103,756.16-143,187.33-57,819.93

Finding the Fourth Proportional to 103,756.16, 143,187.33 and 57,819.93

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Solution

The fourth proportional to 103,756.16, 143,187.33 and 57,819.93 is: 79,793.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,756.16 : 143,187.33 = 57,819.93 : x
  2. Step 2: Convert to fraction form
    103,756.16/143,187.33 = 57,819.93/x
  3. Step 3: Cross multiply
    103,756.16x = 143,187.33 × 57,819.93
  4. Step 4: Simplify right side
    103,756.16x = 8,279,081,397.49
  5. Step 5: Solve for x
    x = 8,279,081,397.49/103,756.16
  6. Step 6: Final answer
    x = 79,793.64

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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.