Home / 105,320.80-145,342.74-57,574.14

Finding the Fourth Proportional to 105,320.80, 145,342.74 and 57,574.14

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Solution

The fourth proportional to 105,320.80, 145,342.74 and 57,574.14 is: 79,452.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,320.80 : 145,342.74 = 57,574.14 : x
  2. Step 2: Convert to fraction form
    105,320.80/145,342.74 = 57,574.14/x
  3. Step 3: Cross multiply
    105,320.80x = 145,342.74 × 57,574.14
  4. Step 4: Simplify right side
    105,320.80x = 8,367,983,260.74
  5. Step 5: Solve for x
    x = 8,367,983,260.74/105,320.80
  6. Step 6: Final answer
    x = 79,452.33

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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.