Home / 131,718.90-197,643.15-100,118.10

Finding the Fourth Proportional to 131,718.90, 197,643.15 and 100,118.10

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Solution

The fourth proportional to 131,718.90, 197,643.15 and 100,118.10 is: 150,226.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,718.90 : 197,643.15 = 100,118.10 : x
  2. Step 2: Convert to fraction form
    131,718.90/197,643.15 = 100,118.10/x
  3. Step 3: Cross multiply
    131,718.90x = 197,643.15 × 100,118.10
  4. Step 4: Simplify right side
    131,718.90x = 19,787,656,656.02
  5. Step 5: Solve for x
    x = 19,787,656,656.02/131,718.90
  6. Step 6: Final answer
    x = 150,226.40

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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.