Home / 142,422.03-213,608.70-47,639.07

Finding the Fourth Proportional to 142,422.03, 213,608.70 and 47,639.07

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Solution

The fourth proportional to 142,422.03, 213,608.70 and 47,639.07 is: 71,450.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,422.03 : 213,608.70 = 47,639.07 : x
  2. Step 2: Convert to fraction form
    142,422.03/213,608.70 = 47,639.07/x
  3. Step 3: Cross multiply
    142,422.03x = 213,608.70 × 47,639.07
  4. Step 4: Simplify right side
    142,422.03x = 10,176,119,811.91
  5. Step 5: Solve for x
    x = 10,176,119,811.91/142,422.03
  6. Step 6: Final answer
    x = 71,450.46

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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.