Home / 156,134.07-215,464.56-84,513.93

Finding the Fourth Proportional to 156,134.07, 215,464.56 and 84,513.93

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Solution

The fourth proportional to 156,134.07, 215,464.56 and 84,513.93 is: 116,628.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,134.07 : 215,464.56 = 84,513.93 : x
  2. Step 2: Convert to fraction form
    156,134.07/215,464.56 = 84,513.93/x
  3. Step 3: Cross multiply
    156,134.07x = 215,464.56 × 84,513.93
  4. Step 4: Simplify right side
    156,134.07x = 18,209,756,741.32
  5. Step 5: Solve for x
    x = 18,209,756,741.32/156,134.07
  6. Step 6: Final answer
    x = 116,628.98

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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.