Home / 141,400.40-195,133.05-77,742.23

Finding the Fourth Proportional to 141,400.40, 195,133.05 and 77,742.23

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Solution

The fourth proportional to 141,400.40, 195,133.05 and 77,742.23 is: 107,284.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,400.40 : 195,133.05 = 77,742.23 : x
  2. Step 2: Convert to fraction form
    141,400.40/195,133.05 = 77,742.23/x
  3. Step 3: Cross multiply
    141,400.40x = 195,133.05 × 77,742.23
  4. Step 4: Simplify right side
    141,400.40x = 15,170,077,478.04
  5. Step 5: Solve for x
    x = 15,170,077,478.04/141,400.40
  6. Step 6: Final answer
    x = 107,284.55

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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.