Home / 103,010.46-155,217.59-84,700.66

Finding the Fourth Proportional to 103,010.46, 155,217.59 and 84,700.66

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Solution

The fourth proportional to 103,010.46, 155,217.59 and 84,700.66 is: 127,628.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,010.46 : 155,217.59 = 84,700.66 : x
  2. Step 2: Convert to fraction form
    103,010.46/155,217.59 = 84,700.66/x
  3. Step 3: Cross multiply
    103,010.46x = 155,217.59 × 84,700.66
  4. Step 4: Simplify right side
    103,010.46x = 13,147,032,316.61
  5. Step 5: Solve for x
    x = 13,147,032,316.61/103,010.46
  6. Step 6: Final answer
    x = 127,628.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.