Home / 99,785.82-149,678.46-40,607.49

Finding the Fourth Proportional to 99,785.82, 149,678.46 and 40,607.49

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Solution

The fourth proportional to 99,785.82, 149,678.46 and 40,607.49 is: 60,911.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,785.82 : 149,678.46 = 40,607.49 : x
  2. Step 2: Convert to fraction form
    99,785.82/149,678.46 = 40,607.49/x
  3. Step 3: Cross multiply
    99,785.82x = 149,678.46 × 40,607.49
  4. Step 4: Simplify right side
    99,785.82x = 6,078,066,567.67
  5. Step 5: Solve for x
    x = 6,078,066,567.67/99,785.82
  6. Step 6: Final answer
    x = 60,911.13

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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.