Home / 141,339.12-195,061.71-80,918.40

Finding the Fourth Proportional to 141,339.12, 195,061.71 and 80,918.40

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Solution

The fourth proportional to 141,339.12, 195,061.71 and 80,918.40 is: 111,675.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,339.12 : 195,061.71 = 80,918.40 : x
  2. Step 2: Convert to fraction form
    141,339.12/195,061.71 = 80,918.40/x
  3. Step 3: Cross multiply
    141,339.12x = 195,061.71 × 80,918.40
  4. Step 4: Simplify right side
    141,339.12x = 15,784,081,474.46
  5. Step 5: Solve for x
    x = 15,784,081,474.46/141,339.12
  6. Step 6: Final answer
    x = 111,675.25

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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.