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Finding the Fourth Proportional to 148,857.80, 223,545.90 and 78,873.80

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Solution

The fourth proportional to 148,857.80, 223,545.90 and 78,873.80 is: 118,448.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,857.80 : 223,545.90 = 78,873.80 : x
  2. Step 2: Convert to fraction form
    148,857.80/223,545.90 = 78,873.80/x
  3. Step 3: Cross multiply
    148,857.80x = 223,545.90 × 78,873.80
  4. Step 4: Simplify right side
    148,857.80x = 17,631,914,607.42
  5. Step 5: Solve for x
    x = 17,631,914,607.42/148,857.80
  6. Step 6: Final answer
    x = 118,448.04

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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.