Home / 156,975.16-216,623.46-85,353.16

Finding the Fourth Proportional to 156,975.16, 216,623.46 and 85,353.16

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Solution

The fourth proportional to 156,975.16, 216,623.46 and 85,353.16 is: 117,786.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,975.16 : 216,623.46 = 85,353.16 : x
  2. Step 2: Convert to fraction form
    156,975.16/216,623.46 = 85,353.16/x
  3. Step 3: Cross multiply
    156,975.16x = 216,623.46 × 85,353.16
  4. Step 4: Simplify right side
    156,975.16x = 18,489,496,841.13
  5. Step 5: Solve for x
    x = 18,489,496,841.13/156,975.16
  6. Step 6: Final answer
    x = 117,786.13

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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.