Home / 185,421.81-255,424.06-158,108.95

Finding the Fourth Proportional to 185,421.81, 255,424.06 and 158,108.95

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Solution

The fourth proportional to 185,421.81, 255,424.06 and 158,108.95 is: 217,799.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,421.81 : 255,424.06 = 158,108.95 : x
  2. Step 2: Convert to fraction form
    185,421.81/255,424.06 = 158,108.95/x
  3. Step 3: Cross multiply
    185,421.81x = 255,424.06 × 158,108.95
  4. Step 4: Simplify right side
    185,421.81x = 40,384,830,721.95
  5. Step 5: Solve for x
    x = 40,384,830,721.95/185,421.81
  6. Step 6: Final answer
    x = 217,799.78

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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.