Home / 156,383.68-234,586.08-77,476.72

Finding the Fourth Proportional to 156,383.68, 234,586.08 and 77,476.72

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Solution

The fourth proportional to 156,383.68, 234,586.08 and 77,476.72 is: 116,220.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,383.68 : 234,586.08 = 77,476.72 : x
  2. Step 2: Convert to fraction form
    156,383.68/234,586.08 = 77,476.72/x
  3. Step 3: Cross multiply
    156,383.68x = 234,586.08 × 77,476.72
  4. Step 4: Simplify right side
    156,383.68x = 18,174,960,036.06
  5. Step 5: Solve for x
    x = 18,174,960,036.06/156,383.68
  6. Step 6: Final answer
    x = 116,220.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.