Home / 156,770.12-216,343.91-85,150.16

Finding the Fourth Proportional to 156,770.12, 216,343.91 and 85,150.16

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Solution

The fourth proportional to 156,770.12, 216,343.91 and 85,150.16 is: 117,507.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,770.12 : 216,343.91 = 85,150.16 : x
  2. Step 2: Convert to fraction form
    156,770.12/216,343.91 = 85,150.16/x
  3. Step 3: Cross multiply
    156,770.12x = 216,343.91 × 85,150.16
  4. Step 4: Simplify right side
    156,770.12x = 18,421,717,044.06
  5. Step 5: Solve for x
    x = 18,421,717,044.06/156,770.12
  6. Step 6: Final answer
    x = 117,507.83

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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.