Home / 156,805.81-234,023.68-141,672.21

Finding the Fourth Proportional to 156,805.81, 234,023.68 and 141,672.21

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Solution

The fourth proportional to 156,805.81, 234,023.68 and 141,672.21 is: 211,437.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,805.81 : 234,023.68 = 141,672.21 : x
  2. Step 2: Convert to fraction form
    156,805.81/234,023.68 = 141,672.21/x
  3. Step 3: Cross multiply
    156,805.81x = 234,023.68 × 141,672.21
  4. Step 4: Simplify right side
    156,805.81x = 33,154,651,237.43
  5. Step 5: Solve for x
    x = 33,154,651,237.43/156,805.81
  6. Step 6: Final answer
    x = 211,437.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.