Home / 102,289.16-153,435.36-31,213.28

Finding the Fourth Proportional to 102,289.16, 153,435.36 and 31,213.28

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Solution

The fourth proportional to 102,289.16, 153,435.36 and 31,213.28 is: 46,820.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,289.16 : 153,435.36 = 31,213.28 : x
  2. Step 2: Convert to fraction form
    102,289.16/153,435.36 = 31,213.28/x
  3. Step 3: Cross multiply
    102,289.16x = 153,435.36 × 31,213.28
  4. Step 4: Simplify right side
    102,289.16x = 4,789,220,853.58
  5. Step 5: Solve for x
    x = 4,789,220,853.58/102,289.16
  6. Step 6: Final answer
    x = 46,820.41

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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.