Home / 131,411.10-197,116.65-100,307.10

Finding the Fourth Proportional to 131,411.10, 197,116.65 and 100,307.10

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Solution

The fourth proportional to 131,411.10, 197,116.65 and 100,307.10 is: 150,460.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,411.10 : 197,116.65 = 100,307.10 : x
  2. Step 2: Convert to fraction form
    131,411.10/197,116.65 = 100,307.10/x
  3. Step 3: Cross multiply
    131,411.10x = 197,116.65 × 100,307.10
  4. Step 4: Simplify right side
    131,411.10x = 19,772,199,523.22
  5. Step 5: Solve for x
    x = 19,772,199,523.22/131,411.10
  6. Step 6: Final answer
    x = 150,460.65

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Similar ratio
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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.