Home / 163,479.47-225,521.62-99,706.55

Finding the Fourth Proportional to 163,479.47, 225,521.62 and 99,706.55

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Solution

The fourth proportional to 163,479.47, 225,521.62 and 99,706.55 is: 137,546.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,479.47 : 225,521.62 = 99,706.55 : x
  2. Step 2: Convert to fraction form
    163,479.47/225,521.62 = 99,706.55/x
  3. Step 3: Cross multiply
    163,479.47x = 225,521.62 × 99,706.55
  4. Step 4: Simplify right side
    163,479.47x = 22,485,981,303.74
  5. Step 5: Solve for x
    x = 22,485,981,303.74/163,479.47
  6. Step 6: Final answer
    x = 137,546.21

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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.