Home / 157,176.61-235,767.36-87,498.79

Finding the Fourth Proportional to 157,176.61, 235,767.36 and 87,498.79

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Solution

The fourth proportional to 157,176.61, 235,767.36 and 87,498.79 is: 131,249.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,176.61 : 235,767.36 = 87,498.79 : x
  2. Step 2: Convert to fraction form
    157,176.61/235,767.36 = 87,498.79/x
  3. Step 3: Cross multiply
    157,176.61x = 235,767.36 × 87,498.79
  4. Step 4: Simplify right side
    157,176.61x = 20,629,358,721.49
  5. Step 5: Solve for x
    x = 20,629,358,721.49/157,176.61
  6. Step 6: Final answer
    x = 131,249.55

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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.