Home / 156,613.08-216,018.96-99,998.94

Finding the Fourth Proportional to 156,613.08, 216,018.96 and 99,998.94

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Solution

The fourth proportional to 156,613.08, 216,018.96 and 99,998.94 is: 137,930.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,613.08 : 216,018.96 = 99,998.94 : x
  2. Step 2: Convert to fraction form
    156,613.08/216,018.96 = 99,998.94/x
  3. Step 3: Cross multiply
    156,613.08x = 216,018.96 × 99,998.94
  4. Step 4: Simplify right side
    156,613.08x = 21,601,667,019.90
  5. Step 5: Solve for x
    x = 21,601,667,019.90/156,613.08
  6. Step 6: Final answer
    x = 137,930.16

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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.