Home / 101,513.12-140,089.35-56,195.29

Finding the Fourth Proportional to 101,513.12, 140,089.35 and 56,195.29

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Solution

The fourth proportional to 101,513.12, 140,089.35 and 56,195.29 is: 77,550.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,513.12 : 140,089.35 = 56,195.29 : x
  2. Step 2: Convert to fraction form
    101,513.12/140,089.35 = 56,195.29/x
  3. Step 3: Cross multiply
    101,513.12x = 140,089.35 × 56,195.29
  4. Step 4: Simplify right side
    101,513.12x = 7,872,362,112.91
  5. Step 5: Solve for x
    x = 7,872,362,112.91/101,513.12
  6. Step 6: Final answer
    x = 77,550.19

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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.