Home / 142,450.29-213,780.42-67,570.65

Finding the Fourth Proportional to 142,450.29, 213,780.42 and 67,570.65

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Solution

The fourth proportional to 142,450.29, 213,780.42 and 67,570.65 is: 101,405.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,450.29 : 213,780.42 = 67,570.65 : x
  2. Step 2: Convert to fraction form
    142,450.29/213,780.42 = 67,570.65/x
  3. Step 3: Cross multiply
    142,450.29x = 213,780.42 × 67,570.65
  4. Step 4: Simplify right side
    142,450.29x = 14,445,281,936.67
  5. Step 5: Solve for x
    x = 14,445,281,936.67/142,450.29
  6. Step 6: Final answer
    x = 101,405.77

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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.