Home / 163,986.10-245,979.15-147,915.70

Finding the Fourth Proportional to 163,986.10, 245,979.15 and 147,915.70

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Solution

The fourth proportional to 163,986.10, 245,979.15 and 147,915.70 is: 221,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,986.10 : 245,979.15 = 147,915.70 : x
  2. Step 2: Convert to fraction form
    163,986.10/245,979.15 = 147,915.70/x
  3. Step 3: Cross multiply
    163,986.10x = 245,979.15 × 147,915.70
  4. Step 4: Simplify right side
    163,986.10x = 36,384,178,157.66
  5. Step 5: Solve for x
    x = 36,384,178,157.66/163,986.10
  6. Step 6: Final answer
    x = 221,873.55

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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.