Home / 147,431.33-221,146.95-47,606.21

Finding the Fourth Proportional to 147,431.33, 221,146.95 and 47,606.21

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Solution

The fourth proportional to 147,431.33, 221,146.95 and 47,606.21 is: 71,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,431.33 : 221,146.95 = 47,606.21 : x
  2. Step 2: Convert to fraction form
    147,431.33/221,146.95 = 47,606.21/x
  3. Step 3: Cross multiply
    147,431.33x = 221,146.95 × 47,606.21
  4. Step 4: Simplify right side
    147,431.33x = 10,527,968,142.56
  5. Step 5: Solve for x
    x = 10,527,968,142.56/147,431.33
  6. Step 6: Final answer
    x = 71,409.30

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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.