Home / 105,946.48-158,919.84-39,403.36

Finding the Fourth Proportional to 105,946.48, 158,919.84 and 39,403.36

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Solution

The fourth proportional to 105,946.48, 158,919.84 and 39,403.36 is: 59,105.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,946.48 : 158,919.84 = 39,403.36 : x
  2. Step 2: Convert to fraction form
    105,946.48/158,919.84 = 39,403.36/x
  3. Step 3: Cross multiply
    105,946.48x = 158,919.84 × 39,403.36
  4. Step 4: Simplify right side
    105,946.48x = 6,261,975,666.66
  5. Step 5: Solve for x
    x = 6,261,975,666.66/105,946.48
  6. Step 6: Final answer
    x = 59,105.08

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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.