Home / 102,906.68-142,007.34-58,195.64

Finding the Fourth Proportional to 102,906.68, 142,007.34 and 58,195.64

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Solution

The fourth proportional to 102,906.68, 142,007.34 and 58,195.64 is: 80,307.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,906.68 : 142,007.34 = 58,195.64 : x
  2. Step 2: Convert to fraction form
    102,906.68/142,007.34 = 58,195.64/x
  3. Step 3: Cross multiply
    102,906.68x = 142,007.34 × 58,195.64
  4. Step 4: Simplify right side
    102,906.68x = 8,264,208,036.00
  5. Step 5: Solve for x
    x = 8,264,208,036.00/102,906.68
  6. Step 6: Final answer
    x = 80,307.79

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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.