Home / 215,831.53-297,847.70-120,336.31

Finding the Fourth Proportional to 215,831.53, 297,847.70 and 120,336.31

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Solution

The fourth proportional to 215,831.53, 297,847.70 and 120,336.31 is: 166,064.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,831.53 : 297,847.70 = 120,336.31 : x
  2. Step 2: Convert to fraction form
    215,831.53/297,847.70 = 120,336.31/x
  3. Step 3: Cross multiply
    215,831.53x = 297,847.70 × 120,336.31
  4. Step 4: Simplify right side
    215,831.53x = 35,841,893,159.99
  5. Step 5: Solve for x
    x = 35,841,893,159.99/215,831.53
  6. Step 6: Final answer
    x = 166,064.21

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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.