Home / 156,964.07-216,608.88-85,344.09

Finding the Fourth Proportional to 156,964.07, 216,608.88 and 85,344.09

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Solution

The fourth proportional to 156,964.07, 216,608.88 and 85,344.09 is: 117,774.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,964.07 : 216,608.88 = 85,344.09 : x
  2. Step 2: Convert to fraction form
    156,964.07/216,608.88 = 85,344.09/x
  3. Step 3: Cross multiply
    156,964.07x = 216,608.88 × 85,344.09
  4. Step 4: Simplify right side
    156,964.07x = 18,486,286,666.47
  5. Step 5: Solve for x
    x = 18,486,286,666.47/156,964.07
  6. Step 6: Final answer
    x = 117,774.01

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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.