Home / 97,940.58-135,087.98-89,899.76

Finding the Fourth Proportional to 97,940.58, 135,087.98 and 89,899.76

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Solution

The fourth proportional to 97,940.58, 135,087.98 and 89,899.76 is: 123,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,940.58 : 135,087.98 = 89,899.76 : x
  2. Step 2: Convert to fraction form
    97,940.58/135,087.98 = 89,899.76/x
  3. Step 3: Cross multiply
    97,940.58x = 135,087.98 × 89,899.76
  4. Step 4: Simplify right side
    97,940.58x = 12,144,377,543.35
  5. Step 5: Solve for x
    x = 12,144,377,543.35/97,940.58
  6. Step 6: Final answer
    x = 123,997.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.