Home / 106,778.28-147,347.70-59,028.78

Finding the Fourth Proportional to 106,778.28, 147,347.70 and 59,028.78

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Solution

The fourth proportional to 106,778.28, 147,347.70 and 59,028.78 is: 81,456.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,778.28 : 147,347.70 = 59,028.78 : x
  2. Step 2: Convert to fraction form
    106,778.28/147,347.70 = 59,028.78/x
  3. Step 3: Cross multiply
    106,778.28x = 147,347.70 × 59,028.78
  4. Step 4: Simplify right side
    106,778.28x = 8,697,754,966.81
  5. Step 5: Solve for x
    x = 8,697,754,966.81/106,778.28
  6. Step 6: Final answer
    x = 81,456.22

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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.