Home / 141,810.75-195,698.84-78,154.47

Finding the Fourth Proportional to 141,810.75, 195,698.84 and 78,154.47

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Solution

The fourth proportional to 141,810.75, 195,698.84 and 78,154.47 is: 107,853.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,810.75 : 195,698.84 = 78,154.47 : x
  2. Step 2: Convert to fraction form
    141,810.75/195,698.84 = 78,154.47/x
  3. Step 3: Cross multiply
    141,810.75x = 195,698.84 × 78,154.47
  4. Step 4: Simplify right side
    141,810.75x = 15,294,738,729.04
  5. Step 5: Solve for x
    x = 15,294,738,729.04/141,810.75
  6. Step 6: Final answer
    x = 107,853.17

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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.