Home / 143,297.25-197,779.41-98,100.15

Finding the Fourth Proportional to 143,297.25, 197,779.41 and 98,100.15

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Solution

The fourth proportional to 143,297.25, 197,779.41 and 98,100.15 is: 135,398.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,297.25 : 197,779.41 = 98,100.15 : x
  2. Step 2: Convert to fraction form
    143,297.25/197,779.41 = 98,100.15/x
  3. Step 3: Cross multiply
    143,297.25x = 197,779.41 × 98,100.15
  4. Step 4: Simplify right side
    143,297.25x = 19,402,189,787.91
  5. Step 5: Solve for x
    x = 19,402,189,787.91/143,297.25
  6. Step 6: Final answer
    x = 135,398.20

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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.