Home / 215,702.27-297,663.14-120,206.51

Finding the Fourth Proportional to 215,702.27, 297,663.14 and 120,206.51

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Solution

The fourth proportional to 215,702.27, 297,663.14 and 120,206.51 is: 165,881.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,702.27 : 297,663.14 = 120,206.51 : x
  2. Step 2: Convert to fraction form
    215,702.27/297,663.14 = 120,206.51/x
  3. Step 3: Cross multiply
    215,702.27x = 297,663.14 × 120,206.51
  4. Step 4: Simplify right side
    215,702.27x = 35,781,045,125.69
  5. Step 5: Solve for x
    x = 35,781,045,125.69/215,702.27
  6. Step 6: Final answer
    x = 165,881.64

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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.