Home / 285,821.16-428,731.73-98,832.66

Finding the Fourth Proportional to 285,821.16, 428,731.73 and 98,832.66

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Solution

The fourth proportional to 285,821.16, 428,731.73 and 98,832.66 is: 148,248.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,821.16 : 428,731.73 = 98,832.66 : x
  2. Step 2: Convert to fraction form
    285,821.16/428,731.73 = 98,832.66/x
  3. Step 3: Cross multiply
    285,821.16x = 428,731.73 × 98,832.66
  4. Step 4: Simplify right side
    285,821.16x = 42,372,696,126.95
  5. Step 5: Solve for x
    x = 42,372,696,126.95/285,821.16
  6. Step 6: Final answer
    x = 148,248.98

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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.