Home / 215,521.65-297,429.11-120,028.35

Finding the Fourth Proportional to 215,521.65, 297,429.11 and 120,028.35

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Solution

The fourth proportional to 215,521.65, 297,429.11 and 120,028.35 is: 165,644.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,521.65 : 297,429.11 = 120,028.35 : x
  2. Step 2: Convert to fraction form
    215,521.65/297,429.11 = 120,028.35/x
  3. Step 3: Cross multiply
    215,521.65x = 297,429.11 × 120,028.35
  4. Step 4: Simplify right side
    215,521.65x = 35,699,924,715.13
  5. Step 5: Solve for x
    x = 35,699,924,715.13/215,521.65
  6. Step 6: Final answer
    x = 165,644.26

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1.5x scale

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.