Home / 103,020.19-155,232.28-84,710.41

Finding the Fourth Proportional to 103,020.19, 155,232.28 and 84,710.41

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Solution

The fourth proportional to 103,020.19, 155,232.28 and 84,710.41 is: 127,642.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,020.19 : 155,232.28 = 84,710.41 : x
  2. Step 2: Convert to fraction form
    103,020.19/155,232.28 = 84,710.41/x
  3. Step 3: Cross multiply
    103,020.19x = 155,232.28 × 84,710.41
  4. Step 4: Simplify right side
    103,020.19x = 13,149,789,801.84
  5. Step 5: Solve for x
    x = 13,149,789,801.84/103,020.19
  6. Step 6: Final answer
    x = 127,642.84

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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.