Home / 106,622.16-147,147.26-61,314.80

Finding the Fourth Proportional to 106,622.16, 147,147.26 and 61,314.80

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Solution

The fourth proportional to 106,622.16, 147,147.26 and 61,314.80 is: 84,619.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,622.16 : 147,147.26 = 61,314.80 : x
  2. Step 2: Convert to fraction form
    106,622.16/147,147.26 = 61,314.80/x
  3. Step 3: Cross multiply
    106,622.16x = 147,147.26 × 61,314.80
  4. Step 4: Simplify right side
    106,622.16x = 9,022,304,817.45
  5. Step 5: Solve for x
    x = 9,022,304,817.45/106,622.16
  6. Step 6: Final answer
    x = 84,619.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.