Home / 142,079.15-196,066.23-77,546.25

Finding the Fourth Proportional to 142,079.15, 196,066.23 and 77,546.25

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Solution

The fourth proportional to 142,079.15, 196,066.23 and 77,546.25 is: 107,012.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,079.15 : 196,066.23 = 77,546.25 : x
  2. Step 2: Convert to fraction form
    142,079.15/196,066.23 = 77,546.25/x
  3. Step 3: Cross multiply
    142,079.15x = 196,066.23 × 77,546.25
  4. Step 4: Simplify right side
    142,079.15x = 15,204,200,888.14
  5. Step 5: Solve for x
    x = 15,204,200,888.14/142,079.15
  6. Step 6: Final answer
    x = 107,012.19

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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.