Home / 155,929.41-215,182.71-84,309.48

Finding the Fourth Proportional to 155,929.41, 215,182.71 and 84,309.48

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Solution

The fourth proportional to 155,929.41, 215,182.71 and 84,309.48 is: 116,347.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,929.41 : 215,182.71 = 84,309.48 : x
  2. Step 2: Convert to fraction form
    155,929.41/215,182.71 = 84,309.48/x
  3. Step 3: Cross multiply
    155,929.41x = 215,182.71 × 84,309.48
  4. Step 4: Simplify right side
    155,929.41x = 18,141,942,385.09
  5. Step 5: Solve for x
    x = 18,141,942,385.09/155,929.41
  6. Step 6: Final answer
    x = 116,347.15

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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.