Home / 146,039.18-201,534.09-78,971.18

Finding the Fourth Proportional to 146,039.18, 201,534.09 and 78,971.18

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Solution

The fourth proportional to 146,039.18, 201,534.09 and 78,971.18 is: 108,980.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,039.18 : 201,534.09 = 78,971.18 : x
  2. Step 2: Convert to fraction form
    146,039.18/201,534.09 = 78,971.18/x
  3. Step 3: Cross multiply
    146,039.18x = 201,534.09 × 78,971.18
  4. Step 4: Simplify right side
    146,039.18x = 15,915,384,897.53
  5. Step 5: Solve for x
    x = 15,915,384,897.53/146,039.18
  6. Step 6: Final answer
    x = 108,980.24

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1.5x scale

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.