Home / 163,630.90-245,337-132,079.78

Finding the Fourth Proportional to 163,630.90, 245,337 and 132,079.78

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Solution

The fourth proportional to 163,630.90, 245,337 and 132,079.78 is: 198,031.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,630.90 : 245,337 = 132,079.78 : x
  2. Step 2: Convert to fraction form
    163,630.90/245,337 = 132,079.78/x
  3. Step 3: Cross multiply
    163,630.90x = 245,337 × 132,079.78
  4. Step 4: Simplify right side
    163,630.90x = 32,404,056,985.86
  5. Step 5: Solve for x
    x = 32,404,056,985.86/163,630.90
  6. Step 6: Final answer
    x = 198,031.40

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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.