Home / 105,768.36-145,959.53-58,021.38

Finding the Fourth Proportional to 105,768.36, 145,959.53 and 58,021.38

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Solution

The fourth proportional to 105,768.36, 145,959.53 and 58,021.38 is: 80,069.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,768.36 : 145,959.53 = 58,021.38 : x
  2. Step 2: Convert to fraction form
    105,768.36/145,959.53 = 58,021.38/x
  3. Step 3: Cross multiply
    105,768.36x = 145,959.53 × 58,021.38
  4. Step 4: Simplify right side
    105,768.36x = 8,468,773,064.64
  5. Step 5: Solve for x
    x = 8,468,773,064.64/105,768.36
  6. Step 6: Final answer
    x = 80,069.06

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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.