Home / 141,221.10-212,601.05-121,936.62

Finding the Fourth Proportional to 141,221.10, 212,601.05 and 121,936.62

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Solution

The fourth proportional to 141,221.10, 212,601.05 and 121,936.62 is: 183,569.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,221.10 : 212,601.05 = 121,936.62 : x
  2. Step 2: Convert to fraction form
    141,221.10/212,601.05 = 121,936.62/x
  3. Step 3: Cross multiply
    141,221.10x = 212,601.05 × 121,936.62
  4. Step 4: Simplify right side
    141,221.10x = 25,923,852,835.77
  5. Step 5: Solve for x
    x = 25,923,852,835.77/141,221.10
  6. Step 6: Final answer
    x = 183,569.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.