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Finding the Fourth Proportional to 97,226.70, 145,840.05 and 81,674.70

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Solution

The fourth proportional to 97,226.70, 145,840.05 and 81,674.70 is: 122,512.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,226.70 : 145,840.05 = 81,674.70 : x
  2. Step 2: Convert to fraction form
    97,226.70/145,840.05 = 81,674.70/x
  3. Step 3: Cross multiply
    97,226.70x = 145,840.05 × 81,674.70
  4. Step 4: Simplify right side
    97,226.70x = 11,911,442,331.74
  5. Step 5: Solve for x
    x = 11,911,442,331.74/97,226.70
  6. Step 6: Final answer
    x = 122,512.05

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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.