Home / 106,994.12-147,639.29-61,671.56

Finding the Fourth Proportional to 106,994.12, 147,639.29 and 61,671.56

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Solution

The fourth proportional to 106,994.12, 147,639.29 and 61,671.56 is: 85,099.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,994.12 : 147,639.29 = 61,671.56 : x
  2. Step 2: Convert to fraction form
    106,994.12/147,639.29 = 61,671.56/x
  3. Step 3: Cross multiply
    106,994.12x = 147,639.29 × 61,671.56
  4. Step 4: Simplify right side
    106,994.12x = 9,105,144,285.04
  5. Step 5: Solve for x
    x = 9,105,144,285.04/106,994.12
  6. Step 6: Final answer
    x = 85,099.49

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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.