Home / 94,186.47-129,919.68-55,920.06

Finding the Fourth Proportional to 94,186.47, 129,919.68 and 55,920.06

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Solution

The fourth proportional to 94,186.47, 129,919.68 and 55,920.06 is: 77,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,186.47 : 129,919.68 = 55,920.06 : x
  2. Step 2: Convert to fraction form
    94,186.47/129,919.68 = 55,920.06/x
  3. Step 3: Cross multiply
    94,186.47x = 129,919.68 × 55,920.06
  4. Step 4: Simplify right side
    94,186.47x = 7,265,116,300.78
  5. Step 5: Solve for x
    x = 7,265,116,300.78/94,186.47
  6. Step 6: Final answer
    x = 77,135.46

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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.