Home / 148,715.15-222,617.10-81,950.90

Finding the Fourth Proportional to 148,715.15, 222,617.10 and 81,950.90

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Solution

The fourth proportional to 148,715.15, 222,617.10 and 81,950.90 is: 122,675.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,715.15 : 222,617.10 = 81,950.90 : x
  2. Step 2: Convert to fraction form
    148,715.15/222,617.10 = 81,950.90/x
  3. Step 3: Cross multiply
    148,715.15x = 222,617.10 × 81,950.90
  4. Step 4: Simplify right side
    148,715.15x = 18,243,671,700.39
  5. Step 5: Solve for x
    x = 18,243,671,700.39/148,715.15
  6. Step 6: Final answer
    x = 122,675.27

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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.