Home / 131,118.60-196,677.90-89,128.20

Finding the Fourth Proportional to 131,118.60, 196,677.90 and 89,128.20

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Solution

The fourth proportional to 131,118.60, 196,677.90 and 89,128.20 is: 133,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,118.60 : 196,677.90 = 89,128.20 : x
  2. Step 2: Convert to fraction form
    131,118.60/196,677.90 = 89,128.20/x
  3. Step 3: Cross multiply
    131,118.60x = 196,677.90 × 89,128.20
  4. Step 4: Simplify right side
    131,118.60x = 17,529,547,206.78
  5. Step 5: Solve for x
    x = 17,529,547,206.78/131,118.60
  6. Step 6: Final answer
    x = 133,692.30

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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.