Home / 105,290.16-145,300.68-57,544.08

Finding the Fourth Proportional to 105,290.16, 145,300.68 and 57,544.08

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Solution

The fourth proportional to 105,290.16, 145,300.68 and 57,544.08 is: 79,410.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,290.16 : 145,300.68 = 57,544.08 : x
  2. Step 2: Convert to fraction form
    105,290.16/145,300.68 = 57,544.08/x
  3. Step 3: Cross multiply
    105,290.16x = 145,300.68 × 57,544.08
  4. Step 4: Simplify right side
    105,290.16x = 8,361,193,953.97
  5. Step 5: Solve for x
    x = 8,361,193,953.97/105,290.16
  6. Step 6: Final answer
    x = 79,410.97

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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.