Home / 157,579.76-217,478.22-87,736.10

Finding the Fourth Proportional to 157,579.76, 217,478.22 and 87,736.10

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Solution

The fourth proportional to 157,579.76, 217,478.22 and 87,736.10 is: 121,085.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,579.76 : 217,478.22 = 87,736.10 : x
  2. Step 2: Convert to fraction form
    157,579.76/217,478.22 = 87,736.10/x
  3. Step 3: Cross multiply
    157,579.76x = 217,478.22 × 87,736.10
  4. Step 4: Simplify right side
    157,579.76x = 19,080,689,441.34
  5. Step 5: Solve for x
    x = 19,080,689,441.34/157,579.76
  6. Step 6: Final answer
    x = 121,085.91

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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.