Home / 99,023.74-136,671.69-77,470.54

Finding the Fourth Proportional to 99,023.74, 136,671.69 and 77,470.54

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Solution

The fourth proportional to 99,023.74, 136,671.69 and 77,470.54 is: 106,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,023.74 : 136,671.69 = 77,470.54 : x
  2. Step 2: Convert to fraction form
    99,023.74/136,671.69 = 77,470.54/x
  3. Step 3: Cross multiply
    99,023.74x = 136,671.69 × 77,470.54
  4. Step 4: Simplify right side
    99,023.74x = 10,588,029,627.01
  5. Step 5: Solve for x
    x = 10,588,029,627.01/99,023.74
  6. Step 6: Final answer
    x = 106,924.15

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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.