Home / 156,860.08-216,467-85,239.93

Finding the Fourth Proportional to 156,860.08, 216,467 and 85,239.93

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Solution

The fourth proportional to 156,860.08, 216,467 and 85,239.93 is: 117,631.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,860.08 : 216,467 = 85,239.93 : x
  2. Step 2: Convert to fraction form
    156,860.08/216,467 = 85,239.93/x
  3. Step 3: Cross multiply
    156,860.08x = 216,467 × 85,239.93
  4. Step 4: Simplify right side
    156,860.08x = 18,451,631,927.31
  5. Step 5: Solve for x
    x = 18,451,631,927.31/156,860.08
  6. Step 6: Final answer
    x = 117,631.15

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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.