Home / 102,285.80-153,437.36-31,224.36

Finding the Fourth Proportional to 102,285.80, 153,437.36 and 31,224.36

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Solution

The fourth proportional to 102,285.80, 153,437.36 and 31,224.36 is: 46,839.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,285.80 : 153,437.36 = 31,224.36 : x
  2. Step 2: Convert to fraction form
    102,285.80/153,437.36 = 31,224.36/x
  3. Step 3: Cross multiply
    102,285.80x = 153,437.36 × 31,224.36
  4. Step 4: Simplify right side
    102,285.80x = 4,790,983,209.97
  5. Step 5: Solve for x
    x = 4,790,983,209.97/102,285.80
  6. Step 6: Final answer
    x = 46,839.18

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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.