Home / 131,420.70-197,131.05-89,948.70

Finding the Fourth Proportional to 131,420.70, 197,131.05 and 89,948.70

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Solution

The fourth proportional to 131,420.70, 197,131.05 and 89,948.70 is: 134,923.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,420.70 : 197,131.05 = 89,948.70 : x
  2. Step 2: Convert to fraction form
    131,420.70/197,131.05 = 89,948.70/x
  3. Step 3: Cross multiply
    131,420.70x = 197,131.05 × 89,948.70
  4. Step 4: Simplify right side
    131,420.70x = 17,731,681,677.14
  5. Step 5: Solve for x
    x = 17,731,681,677.14/131,420.70
  6. Step 6: Final answer
    x = 134,923.05

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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.