Home / 148,530.50-204,972.14-80,547.45

Finding the Fourth Proportional to 148,530.50, 204,972.14 and 80,547.45

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Solution

The fourth proportional to 148,530.50, 204,972.14 and 80,547.45 is: 111,155.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,530.50 : 204,972.14 = 80,547.45 : x
  2. Step 2: Convert to fraction form
    148,530.50/204,972.14 = 80,547.45/x
  3. Step 3: Cross multiply
    148,530.50x = 204,972.14 × 80,547.45
  4. Step 4: Simplify right side
    148,530.50x = 16,509,982,795.31
  5. Step 5: Solve for x
    x = 16,509,982,795.31/148,530.50
  6. Step 6: Final answer
    x = 111,155.51

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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.