Home / 287,883.74-431,732.05-95,706.58

Finding the Fourth Proportional to 287,883.74, 431,732.05 and 95,706.58

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Solution

The fourth proportional to 287,883.74, 431,732.05 and 95,706.58 is: 143,528.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,883.74 : 431,732.05 = 95,706.58 : x
  2. Step 2: Convert to fraction form
    287,883.74/431,732.05 = 95,706.58/x
  3. Step 3: Cross multiply
    287,883.74x = 431,732.05 × 95,706.58
  4. Step 4: Simplify right side
    287,883.74x = 41,319,597,981.89
  5. Step 5: Solve for x
    x = 41,319,597,981.89/287,883.74
  6. Step 6: Final answer
    x = 143,528.77

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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.