Home / 141,345.25-195,054.25-77,681.68

Finding the Fourth Proportional to 141,345.25, 195,054.25 and 77,681.68

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Solution

The fourth proportional to 141,345.25, 195,054.25 and 77,681.68 is: 107,199.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,345.25 : 195,054.25 = 77,681.68 : x
  2. Step 2: Convert to fraction form
    141,345.25/195,054.25 = 77,681.68/x
  3. Step 3: Cross multiply
    141,345.25x = 195,054.25 × 77,681.68
  4. Step 4: Simplify right side
    141,345.25x = 15,152,141,149.30
  5. Step 5: Solve for x
    x = 15,152,141,149.30/141,345.25
  6. Step 6: Final answer
    x = 107,199.51

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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.