Home / 148,880.84-205,464.76-85,217.20

Finding the Fourth Proportional to 148,880.84, 205,464.76 and 85,217.20

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Solution

The fourth proportional to 148,880.84, 205,464.76 and 85,217.20 is: 117,605.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,880.84 : 205,464.76 = 85,217.20 : x
  2. Step 2: Convert to fraction form
    148,880.84/205,464.76 = 85,217.20/x
  3. Step 3: Cross multiply
    148,880.84x = 205,464.76 × 85,217.20
  4. Step 4: Simplify right side
    148,880.84x = 17,509,131,545.87
  5. Step 5: Solve for x
    x = 17,509,131,545.87/148,880.84
  6. Step 6: Final answer
    x = 117,605.00

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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.