Home / 143,960.18-198,656.04-79,430.18

Finding the Fourth Proportional to 143,960.18, 198,656.04 and 79,430.18

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Solution

The fourth proportional to 143,960.18, 198,656.04 and 79,430.18 is: 109,608.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,960.18 : 198,656.04 = 79,430.18 : x
  2. Step 2: Convert to fraction form
    143,960.18/198,656.04 = 79,430.18/x
  3. Step 3: Cross multiply
    143,960.18x = 198,656.04 × 79,430.18
  4. Step 4: Simplify right side
    143,960.18x = 15,779,285,015.29
  5. Step 5: Solve for x
    x = 15,779,285,015.29/143,960.18
  6. Step 6: Final answer
    x = 109,608.68

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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.