Home / 156,935.70-235,403.55-83,207.70

Finding the Fourth Proportional to 156,935.70, 235,403.55 and 83,207.70

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Solution

The fourth proportional to 156,935.70, 235,403.55 and 83,207.70 is: 124,811.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,935.70 : 235,403.55 = 83,207.70 : x
  2. Step 2: Convert to fraction form
    156,935.70/235,403.55 = 83,207.70/x
  3. Step 3: Cross multiply
    156,935.70x = 235,403.55 × 83,207.70
  4. Step 4: Simplify right side
    156,935.70x = 19,587,387,967.34
  5. Step 5: Solve for x
    x = 19,587,387,967.34/156,935.70
  6. Step 6: Final answer
    x = 124,811.55

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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.