Home / 141,637.89-195,464.16-77,979.60

Finding the Fourth Proportional to 141,637.89, 195,464.16 and 77,979.60

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Solution

The fourth proportional to 141,637.89, 195,464.16 and 77,979.60 is: 107,613.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,637.89 : 195,464.16 = 77,979.60 : x
  2. Step 2: Convert to fraction form
    141,637.89/195,464.16 = 77,979.60/x
  3. Step 3: Cross multiply
    141,637.89x = 195,464.16 × 77,979.60
  4. Step 4: Simplify right side
    141,637.89x = 15,242,217,011.14
  5. Step 5: Solve for x
    x = 15,242,217,011.14/141,637.89
  6. Step 6: Final answer
    x = 107,613.98

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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.