Home / 100,775.22-139,055.13-60,480.42

Finding the Fourth Proportional to 100,775.22, 139,055.13 and 60,480.42

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Solution

The fourth proportional to 100,775.22, 139,055.13 and 60,480.42 is: 83,454.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,775.22 : 139,055.13 = 60,480.42 : x
  2. Step 2: Convert to fraction form
    100,775.22/139,055.13 = 60,480.42/x
  3. Step 3: Cross multiply
    100,775.22x = 139,055.13 × 60,480.42
  4. Step 4: Simplify right side
    100,775.22x = 8,410,112,665.55
  5. Step 5: Solve for x
    x = 8,410,112,665.55/100,775.22
  6. Step 6: Final answer
    x = 83,454.17

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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.