Home / 105,582.39-145,703.73-57,837.45

Finding the Fourth Proportional to 105,582.39, 145,703.73 and 57,837.45

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Solution

The fourth proportional to 105,582.39, 145,703.73 and 57,837.45 is: 79,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,582.39 : 145,703.73 = 57,837.45 : x
  2. Step 2: Convert to fraction form
    105,582.39/145,703.73 = 57,837.45/x
  3. Step 3: Cross multiply
    105,582.39x = 145,703.73 × 57,837.45
  4. Step 4: Simplify right side
    105,582.39x = 8,427,132,198.69
  5. Step 5: Solve for x
    x = 8,427,132,198.69/105,582.39
  6. Step 6: Final answer
    x = 79,815.70

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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.