Home / 141,666.80-195,503.88-77,998.64

Finding the Fourth Proportional to 141,666.80, 195,503.88 and 77,998.64

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Solution

The fourth proportional to 141,666.80, 195,503.88 and 77,998.64 is: 107,640.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,666.80 : 195,503.88 = 77,998.64 : x
  2. Step 2: Convert to fraction form
    141,666.80/195,503.88 = 77,998.64/x
  3. Step 3: Cross multiply
    141,666.80x = 195,503.88 × 77,998.64
  4. Step 4: Simplify right side
    141,666.80x = 15,249,036,754.72
  5. Step 5: Solve for x
    x = 15,249,036,754.72/141,666.80
  6. Step 6: Final answer
    x = 107,640.16

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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.