Home / 142,168.23-213,147.01-67,200.77

Finding the Fourth Proportional to 142,168.23, 213,147.01 and 67,200.77

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Solution

The fourth proportional to 142,168.23, 213,147.01 and 67,200.77 is: 100,751.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,168.23 : 213,147.01 = 67,200.77 : x
  2. Step 2: Convert to fraction form
    142,168.23/213,147.01 = 67,200.77/x
  3. Step 3: Cross multiply
    142,168.23x = 213,147.01 × 67,200.77
  4. Step 4: Simplify right side
    142,168.23x = 14,323,643,560.06
  5. Step 5: Solve for x
    x = 14,323,643,560.06/142,168.23
  6. Step 6: Final answer
    x = 100,751.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.