Home / 148,530.78-204,972.53-80,547.73

Finding the Fourth Proportional to 148,530.78, 204,972.53 and 80,547.73

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Solution

The fourth proportional to 148,530.78, 204,972.53 and 80,547.73 is: 111,155.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,530.78 : 204,972.53 = 80,547.73 : x
  2. Step 2: Convert to fraction form
    148,530.78/204,972.53 = 80,547.73/x
  3. Step 3: Cross multiply
    148,530.78x = 204,972.53 × 80,547.73
  4. Step 4: Simplify right side
    148,530.78x = 16,510,071,088.69
  5. Step 5: Solve for x
    x = 16,510,071,088.69/148,530.78
  6. Step 6: Final answer
    x = 111,155.89

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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.