Home / 103,374.13-142,671.73-63,111.23

Finding the Fourth Proportional to 103,374.13, 142,671.73 and 63,111.23

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Solution

The fourth proportional to 103,374.13, 142,671.73 and 63,111.23 is: 87,102.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,374.13 : 142,671.73 = 63,111.23 : x
  2. Step 2: Convert to fraction form
    103,374.13/142,671.73 = 63,111.23/x
  3. Step 3: Cross multiply
    103,374.13x = 142,671.73 × 63,111.23
  4. Step 4: Simplify right side
    103,374.13x = 9,004,188,366.53
  5. Step 5: Solve for x
    x = 9,004,188,366.53/103,374.13
  6. Step 6: Final answer
    x = 87,102.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.