Home / 141,664.80-195,498.72-78,004.08

Finding the Fourth Proportional to 141,664.80, 195,498.72 and 78,004.08

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Solution

The fourth proportional to 141,664.80, 195,498.72 and 78,004.08 is: 107,646.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,664.80 : 195,498.72 = 78,004.08 : x
  2. Step 2: Convert to fraction form
    141,664.80/195,498.72 = 78,004.08/x
  3. Step 3: Cross multiply
    141,664.80x = 195,498.72 × 78,004.08
  4. Step 4: Simplify right side
    141,664.80x = 15,249,697,794.78
  5. Step 5: Solve for x
    x = 15,249,697,794.78/141,664.80
  6. Step 6: Final answer
    x = 107,646.34

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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.