Home / 142,284.08-196,343.51-77,740.44

Finding the Fourth Proportional to 142,284.08, 196,343.51 and 77,740.44

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Solution

The fourth proportional to 142,284.08, 196,343.51 and 77,740.44 is: 107,277.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,284.08 : 196,343.51 = 77,740.44 : x
  2. Step 2: Convert to fraction form
    142,284.08/196,343.51 = 77,740.44/x
  3. Step 3: Cross multiply
    142,284.08x = 196,343.51 × 77,740.44
  4. Step 4: Simplify right side
    142,284.08x = 15,263,830,469.84
  5. Step 5: Solve for x
    x = 15,263,830,469.84/142,284.08
  6. Step 6: Final answer
    x = 107,277.15

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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.