Home / 130,420.08-195,637.80-36,918

Finding the Fourth Proportional to 130,420.08, 195,637.80 and 36,918

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Solution

The fourth proportional to 130,420.08, 195,637.80 and 36,918 is: 55,379.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,420.08 : 195,637.80 = 36,918 : x
  2. Step 2: Convert to fraction form
    130,420.08/195,637.80 = 36,918/x
  3. Step 3: Cross multiply
    130,420.08x = 195,637.80 × 36,918
  4. Step 4: Simplify right side
    130,420.08x = 7,222,556,300.40
  5. Step 5: Solve for x
    x = 7,222,556,300.40/130,420.08
  6. Step 6: Final answer
    x = 55,379.17

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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.