Home / 156,277.12-215,663.44-84,657.12

Finding the Fourth Proportional to 156,277.12, 215,663.44 and 84,657.12

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Solution

The fourth proportional to 156,277.12, 215,663.44 and 84,657.12 is: 116,827.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,277.12 : 215,663.44 = 84,657.12 : x
  2. Step 2: Convert to fraction form
    156,277.12/215,663.44 = 84,657.12/x
  3. Step 3: Cross multiply
    156,277.12x = 215,663.44 × 84,657.12
  4. Step 4: Simplify right side
    156,277.12x = 18,257,445,719.69
  5. Step 5: Solve for x
    x = 18,257,445,719.69/156,277.12
  6. Step 6: Final answer
    x = 116,827.38

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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.