Home / 153,337.11-211,605.18-85,352.64

Finding the Fourth Proportional to 153,337.11, 211,605.18 and 85,352.64

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Solution

The fourth proportional to 153,337.11, 211,605.18 and 85,352.64 is: 117,786.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,337.11 : 211,605.18 = 85,352.64 : x
  2. Step 2: Convert to fraction form
    153,337.11/211,605.18 = 85,352.64/x
  3. Step 3: Cross multiply
    153,337.11x = 211,605.18 × 85,352.64
  4. Step 4: Simplify right side
    153,337.11x = 18,061,060,750.68
  5. Step 5: Solve for x
    x = 18,061,060,750.68/153,337.11
  6. Step 6: Final answer
    x = 117,786.63

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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.