Home / 103,053.41-155,282.13-84,743.61

Finding the Fourth Proportional to 103,053.41, 155,282.13 and 84,743.61

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Solution

The fourth proportional to 103,053.41, 155,282.13 and 84,743.61 is: 127,692.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,053.41 : 155,282.13 = 84,743.61 : x
  2. Step 2: Convert to fraction form
    103,053.41/155,282.13 = 84,743.61/x
  3. Step 3: Cross multiply
    103,053.41x = 155,282.13 × 84,743.61
  4. Step 4: Simplify right side
    103,053.41x = 13,159,168,264.69
  5. Step 5: Solve for x
    x = 13,159,168,264.69/103,053.41
  6. Step 6: Final answer
    x = 127,692.70

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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.