Home / 110,437.26-152,221.41-78,130.14

Finding the Fourth Proportional to 110,437.26, 152,221.41 and 78,130.14

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Solution

The fourth proportional to 110,437.26, 152,221.41 and 78,130.14 is: 107,690.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,437.26 : 152,221.41 = 78,130.14 : x
  2. Step 2: Convert to fraction form
    110,437.26/152,221.41 = 78,130.14/x
  3. Step 3: Cross multiply
    110,437.26x = 152,221.41 × 78,130.14
  4. Step 4: Simplify right side
    110,437.26x = 11,893,080,074.30
  5. Step 5: Solve for x
    x = 11,893,080,074.30/110,437.26
  6. Step 6: Final answer
    x = 107,690.83

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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.