Home / 131,630.30-197,445.45-103,636.70

Finding the Fourth Proportional to 131,630.30, 197,445.45 and 103,636.70

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Solution

The fourth proportional to 131,630.30, 197,445.45 and 103,636.70 is: 155,455.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,630.30 : 197,445.45 = 103,636.70 : x
  2. Step 2: Convert to fraction form
    131,630.30/197,445.45 = 103,636.70/x
  3. Step 3: Cross multiply
    131,630.30x = 197,445.45 × 103,636.70
  4. Step 4: Simplify right side
    131,630.30x = 20,462,594,868.02
  5. Step 5: Solve for x
    x = 20,462,594,868.02/131,630.30
  6. Step 6: Final answer
    x = 155,455.05

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1.5x scale

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.