Home / 113,625.21-157,086.23-85,281.69

Finding the Fourth Proportional to 113,625.21, 157,086.23 and 85,281.69

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Solution

The fourth proportional to 113,625.21, 157,086.23 and 85,281.69 is: 117,901.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,625.21 : 157,086.23 = 85,281.69 : x
  2. Step 2: Convert to fraction form
    113,625.21/157,086.23 = 85,281.69/x
  3. Step 3: Cross multiply
    113,625.21x = 157,086.23 × 85,281.69
  4. Step 4: Simplify right side
    113,625.21x = 13,396,579,170.13
  5. Step 5: Solve for x
    x = 13,396,579,170.13/113,625.21
  6. Step 6: Final answer
    x = 117,901.47

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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.