Home / 116,818.76-161,281.32-76,021.76

Finding the Fourth Proportional to 116,818.76, 161,281.32 and 76,021.76

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Solution

The fourth proportional to 116,818.76, 161,281.32 and 76,021.76 is: 104,956.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,818.76 : 161,281.32 = 76,021.76 : x
  2. Step 2: Convert to fraction form
    116,818.76/161,281.32 = 76,021.76/x
  3. Step 3: Cross multiply
    116,818.76x = 161,281.32 × 76,021.76
  4. Step 4: Simplify right side
    116,818.76x = 12,260,889,801.52
  5. Step 5: Solve for x
    x = 12,260,889,801.52/116,818.76
  6. Step 6: Final answer
    x = 104,956.51

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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.