Home / 142,300.91-213,520.57-67,331.75

Finding the Fourth Proportional to 142,300.91, 213,520.57 and 67,331.75

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Solution

The fourth proportional to 142,300.91, 213,520.57 and 67,331.75 is: 101,030.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,300.91 : 213,520.57 = 67,331.75 : x
  2. Step 2: Convert to fraction form
    142,300.91/213,520.57 = 67,331.75/x
  3. Step 3: Cross multiply
    142,300.91x = 213,520.57 × 67,331.75
  4. Step 4: Simplify right side
    142,300.91x = 14,376,713,548.77
  5. Step 5: Solve for x
    x = 14,376,713,548.77/142,300.91
  6. Step 6: Final answer
    x = 101,030.37

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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.