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Finding the Fourth Proportional to 141,952.56, 212,928.93 and 79,666.80

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Solution

The fourth proportional to 141,952.56, 212,928.93 and 79,666.80 is: 119,500.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,952.56 : 212,928.93 = 79,666.80 : x
  2. Step 2: Convert to fraction form
    141,952.56/212,928.93 = 79,666.80/x
  3. Step 3: Cross multiply
    141,952.56x = 212,928.93 × 79,666.80
  4. Step 4: Simplify right side
    141,952.56x = 16,963,366,480.52
  5. Step 5: Solve for x
    x = 16,963,366,480.52/141,952.56
  6. Step 6: Final answer
    x = 119,500.25

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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.