Home / 175,138.18-262,780.16-86,392.76

Finding the Fourth Proportional to 175,138.18, 262,780.16 and 86,392.76

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Solution

The fourth proportional to 175,138.18, 262,780.16 and 86,392.76 is: 129,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,138.18 : 262,780.16 = 86,392.76 : x
  2. Step 2: Convert to fraction form
    175,138.18/262,780.16 = 86,392.76/x
  3. Step 3: Cross multiply
    175,138.18x = 262,780.16 × 86,392.76
  4. Step 4: Simplify right side
    175,138.18x = 22,702,303,295.64
  5. Step 5: Solve for x
    x = 22,702,303,295.64/175,138.18
  6. Step 6: Final answer
    x = 129,625.10

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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.