Home / 105,127.38-157,605.93-71,763.42

Finding the Fourth Proportional to 105,127.38, 157,605.93 and 71,763.42

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Solution

The fourth proportional to 105,127.38, 157,605.93 and 71,763.42 is: 107,587.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,127.38 : 157,605.93 = 71,763.42 : x
  2. Step 2: Convert to fraction form
    105,127.38/157,605.93 = 71,763.42/x
  3. Step 3: Cross multiply
    105,127.38x = 157,605.93 × 71,763.42
  4. Step 4: Simplify right side
    105,127.38x = 11,310,340,549.08
  5. Step 5: Solve for x
    x = 11,310,340,549.08/105,127.38
  6. Step 6: Final answer
    x = 107,587.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.