Home / 143,880.48-198,557.55-80,211.24

Finding the Fourth Proportional to 143,880.48, 198,557.55 and 80,211.24

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Solution

The fourth proportional to 143,880.48, 198,557.55 and 80,211.24 is: 110,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,880.48 : 198,557.55 = 80,211.24 : x
  2. Step 2: Convert to fraction form
    143,880.48/198,557.55 = 80,211.24/x
  3. Step 3: Cross multiply
    143,880.48x = 198,557.55 × 80,211.24
  4. Step 4: Simplify right side
    143,880.48x = 15,926,547,296.86
  5. Step 5: Solve for x
    x = 15,926,547,296.86/143,880.48
  6. Step 6: Final answer
    x = 110,692.90

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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.