Home / 143,023.32-197,445.70-100,770.48

Finding the Fourth Proportional to 143,023.32, 197,445.70 and 100,770.48

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Solution

The fourth proportional to 143,023.32, 197,445.70 and 100,770.48 is: 139,115.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,023.32 : 197,445.70 = 100,770.48 : x
  2. Step 2: Convert to fraction form
    143,023.32/197,445.70 = 100,770.48/x
  3. Step 3: Cross multiply
    143,023.32x = 197,445.70 × 100,770.48
  4. Step 4: Simplify right side
    143,023.32x = 19,896,697,962.94
  5. Step 5: Solve for x
    x = 19,896,697,962.94/143,023.32
  6. Step 6: Final answer
    x = 139,115.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.