Home / 143,581.77-198,089.70-143,360.34

Finding the Fourth Proportional to 143,581.77, 198,089.70 and 143,360.34

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Solution

The fourth proportional to 143,581.77, 198,089.70 and 143,360.34 is: 197,784.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,581.77 : 198,089.70 = 143,360.34 : x
  2. Step 2: Convert to fraction form
    143,581.77/198,089.70 = 143,360.34/x
  3. Step 3: Cross multiply
    143,581.77x = 198,089.70 × 143,360.34
  4. Step 4: Simplify right side
    143,581.77x = 28,398,206,742.50
  5. Step 5: Solve for x
    x = 28,398,206,742.50/143,581.77
  6. Step 6: Final answer
    x = 197,784.21

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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.