Home / 94,146.80-129,891.28-55,918.04

Finding the Fourth Proportional to 94,146.80, 129,891.28 and 55,918.04

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Solution

The fourth proportional to 94,146.80, 129,891.28 and 55,918.04 is: 77,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,146.80 : 129,891.28 = 55,918.04 : x
  2. Step 2: Convert to fraction form
    94,146.80/129,891.28 = 55,918.04/x
  3. Step 3: Cross multiply
    94,146.80x = 129,891.28 × 55,918.04
  4. Step 4: Simplify right side
    94,146.80x = 7,263,265,790.69
  5. Step 5: Solve for x
    x = 7,263,265,790.69/94,146.80
  6. Step 6: Final answer
    x = 77,148.30

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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.