Home / 215,782.93-297,781.12-117,665.43

Finding the Fourth Proportional to 215,782.93, 297,781.12 and 117,665.43

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Solution

The fourth proportional to 215,782.93, 297,781.12 and 117,665.43 is: 162,378.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,782.93 : 297,781.12 = 117,665.43 : x
  2. Step 2: Convert to fraction form
    215,782.93/297,781.12 = 117,665.43/x
  3. Step 3: Cross multiply
    215,782.93x = 297,781.12 × 117,665.43
  4. Step 4: Simplify right side
    215,782.93x = 35,038,543,530.68
  5. Step 5: Solve for x
    x = 35,038,543,530.68/215,782.93
  6. Step 6: Final answer
    x = 162,378.66

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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.