Home / 140,052.32-193,272.16-76,390.08

Finding the Fourth Proportional to 140,052.32, 193,272.16 and 76,390.08

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Solution

The fourth proportional to 140,052.32, 193,272.16 and 76,390.08 is: 105,418.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,052.32 : 193,272.16 = 76,390.08 : x
  2. Step 2: Convert to fraction form
    140,052.32/193,272.16 = 76,390.08/x
  3. Step 3: Cross multiply
    140,052.32x = 193,272.16 × 76,390.08
  4. Step 4: Simplify right side
    140,052.32x = 14,764,075,764.17
  5. Step 5: Solve for x
    x = 14,764,075,764.17/140,052.32
  6. Step 6: Final answer
    x = 105,418.29

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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.