Home / 117,403.66-162,031.67-77,150.71

Finding the Fourth Proportional to 117,403.66, 162,031.67 and 77,150.71

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Solution

The fourth proportional to 117,403.66, 162,031.67 and 77,150.71 is: 106,477.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,403.66 : 162,031.67 = 77,150.71 : x
  2. Step 2: Convert to fraction form
    117,403.66/162,031.67 = 77,150.71/x
  3. Step 3: Cross multiply
    117,403.66x = 162,031.67 × 77,150.71
  4. Step 4: Simplify right side
    117,403.66x = 12,500,857,765.70
  5. Step 5: Solve for x
    x = 12,500,857,765.70/117,403.66
  6. Step 6: Final answer
    x = 106,477.59

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1.5x scale

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.