Home / 106,991.47-147,648.20-59,244.81

Finding the Fourth Proportional to 106,991.47, 147,648.20 and 59,244.81

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Solution

The fourth proportional to 106,991.47, 147,648.20 and 59,244.81 is: 81,757.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,991.47 : 147,648.20 = 59,244.81 : x
  2. Step 2: Convert to fraction form
    106,991.47/147,648.20 = 59,244.81/x
  3. Step 3: Cross multiply
    106,991.47x = 147,648.20 × 59,244.81
  4. Step 4: Simplify right side
    106,991.47x = 8,747,389,555.84
  5. Step 5: Solve for x
    x = 8,747,389,555.84/106,991.47
  6. Step 6: Final answer
    x = 81,757.82

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1.5x scale

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.