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Finding the Fourth Proportional to 107,090.40, 147,786 and 59,344.32

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Solution

The fourth proportional to 107,090.40, 147,786 and 59,344.32 is: 81,895.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,090.40 : 147,786 = 59,344.32 : x
  2. Step 2: Convert to fraction form
    107,090.40/147,786 = 59,344.32/x
  3. Step 3: Cross multiply
    107,090.40x = 147,786 × 59,344.32
  4. Step 4: Simplify right side
    107,090.40x = 8,770,259,675.52
  5. Step 5: Solve for x
    x = 8,770,259,675.52/107,090.40
  6. Step 6: Final answer
    x = 81,895.85

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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.