Home / 105,670.32-145,825.68-57,923.52

Finding the Fourth Proportional to 105,670.32, 145,825.68 and 57,923.52

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Solution

The fourth proportional to 105,670.32, 145,825.68 and 57,923.52 is: 79,934.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,670.32 : 145,825.68 = 57,923.52 : x
  2. Step 2: Convert to fraction form
    105,670.32/145,825.68 = 57,923.52/x
  3. Step 3: Cross multiply
    105,670.32x = 145,825.68 × 57,923.52
  4. Step 4: Simplify right side
    105,670.32x = 8,446,736,691.99
  5. Step 5: Solve for x
    x = 8,446,736,691.99/105,670.32
  6. Step 6: Final answer
    x = 79,934.81

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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.