Home / 143,572.76-198,126.88-79,041.46

Finding the Fourth Proportional to 143,572.76, 198,126.88 and 79,041.46

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Solution

The fourth proportional to 143,572.76, 198,126.88 and 79,041.46 is: 109,075.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,572.76 : 198,126.88 = 79,041.46 : x
  2. Step 2: Convert to fraction form
    143,572.76/198,126.88 = 79,041.46/x
  3. Step 3: Cross multiply
    143,572.76x = 198,126.88 × 79,041.46
  4. Step 4: Simplify right side
    143,572.76x = 15,660,237,860.44
  5. Step 5: Solve for x
    x = 15,660,237,860.44/143,572.76
  6. Step 6: Final answer
    x = 109,075.27

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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.