Home / 141,400.65-195,133.40-77,742.48

Finding the Fourth Proportional to 141,400.65, 195,133.40 and 77,742.48

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Solution

The fourth proportional to 141,400.65, 195,133.40 and 77,742.48 is: 107,284.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,400.65 : 195,133.40 = 77,742.48 : x
  2. Step 2: Convert to fraction form
    141,400.65/195,133.40 = 77,742.48/x
  3. Step 3: Cross multiply
    141,400.65x = 195,133.40 × 77,742.48
  4. Step 4: Simplify right side
    141,400.65x = 15,170,154,446.83
  5. Step 5: Solve for x
    x = 15,170,154,446.83/141,400.65
  6. Step 6: Final answer
    x = 107,284.90

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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.