Home / 215,911.18-297,957.90-120,424.02

Finding the Fourth Proportional to 215,911.18, 297,957.90 and 120,424.02

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Solution

The fourth proportional to 215,911.18, 297,957.90 and 120,424.02 is: 166,185.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,911.18 : 297,957.90 = 120,424.02 : x
  2. Step 2: Convert to fraction form
    215,911.18/297,957.90 = 120,424.02/x
  3. Step 3: Cross multiply
    215,911.18x = 297,957.90 × 120,424.02
  4. Step 4: Simplify right side
    215,911.18x = 35,881,288,108.76
  5. Step 5: Solve for x
    x = 35,881,288,108.76/215,911.18
  6. Step 6: Final answer
    x = 166,185.41

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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.