Home / 107,141.28-147,855.06-59,395.20

Finding the Fourth Proportional to 107,141.28, 147,855.06 and 59,395.20

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Solution

The fourth proportional to 107,141.28, 147,855.06 and 59,395.20 is: 81,965.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,141.28 : 147,855.06 = 59,395.20 : x
  2. Step 2: Convert to fraction form
    107,141.28/147,855.06 = 59,395.20/x
  3. Step 3: Cross multiply
    107,141.28x = 147,855.06 × 59,395.20
  4. Step 4: Simplify right side
    107,141.28x = 8,781,880,859.71
  5. Step 5: Solve for x
    x = 8,781,880,859.71/107,141.28
  6. Step 6: Final answer
    x = 81,965.43

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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.