Home / 141,827.60-212,741.40-122,128.40

Finding the Fourth Proportional to 141,827.60, 212,741.40 and 122,128.40

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Solution

The fourth proportional to 141,827.60, 212,741.40 and 122,128.40 is: 183,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,827.60 : 212,741.40 = 122,128.40 : x
  2. Step 2: Convert to fraction form
    141,827.60/212,741.40 = 122,128.40/x
  3. Step 3: Cross multiply
    141,827.60x = 212,741.40 × 122,128.40
  4. Step 4: Simplify right side
    141,827.60x = 25,981,766,795.76
  5. Step 5: Solve for x
    x = 25,981,766,795.76/141,827.60
  6. Step 6: Final answer
    x = 183,192.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.