Home / 157,031.29-235,404.40-57,120.87

Finding the Fourth Proportional to 157,031.29, 235,404.40 and 57,120.87

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Solution

The fourth proportional to 157,031.29, 235,404.40 and 57,120.87 is: 85,629.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,031.29 : 235,404.40 = 57,120.87 : x
  2. Step 2: Convert to fraction form
    157,031.29/235,404.40 = 57,120.87/x
  3. Step 3: Cross multiply
    157,031.29x = 235,404.40 × 57,120.87
  4. Step 4: Simplify right side
    157,031.29x = 13,446,504,129.83
  5. Step 5: Solve for x
    x = 13,446,504,129.83/157,031.29
  6. Step 6: Final answer
    x = 85,629.46

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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.