Home / 107,029.44-147,700.80-66,758.40

Finding the Fourth Proportional to 107,029.44, 147,700.80 and 66,758.40

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Solution

The fourth proportional to 107,029.44, 147,700.80 and 66,758.40 is: 92,126.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,029.44 : 147,700.80 = 66,758.40 : x
  2. Step 2: Convert to fraction form
    107,029.44/147,700.80 = 66,758.40/x
  3. Step 3: Cross multiply
    107,029.44x = 147,700.80 × 66,758.40
  4. Step 4: Simplify right side
    107,029.44x = 9,860,269,086.72
  5. Step 5: Solve for x
    x = 9,860,269,086.72/107,029.44
  6. Step 6: Final answer
    x = 92,126.70

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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.