Home / 152,971.38-211,041.54-112,780.68

Finding the Fourth Proportional to 152,971.38, 211,041.54 and 112,780.68

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Solution

The fourth proportional to 152,971.38, 211,041.54 and 112,780.68 is: 155,593.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,971.38 : 211,041.54 = 112,780.68 : x
  2. Step 2: Convert to fraction form
    152,971.38/211,041.54 = 112,780.68/x
  3. Step 3: Cross multiply
    152,971.38x = 211,041.54 × 112,780.68
  4. Step 4: Simplify right side
    152,971.38x = 23,801,408,389.45
  5. Step 5: Solve for x
    x = 23,801,408,389.45/152,971.38
  6. Step 6: Final answer
    x = 155,593.87

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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.