Home / 160,118.48-240,328.24-81,289.28

Finding the Fourth Proportional to 160,118.48, 240,328.24 and 81,289.28

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Solution

The fourth proportional to 160,118.48, 240,328.24 and 81,289.28 is: 122,010.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,118.48 : 240,328.24 = 81,289.28 : x
  2. Step 2: Convert to fraction form
    160,118.48/240,328.24 = 81,289.28/x
  3. Step 3: Cross multiply
    160,118.48x = 240,328.24 × 81,289.28
  4. Step 4: Simplify right side
    160,118.48x = 19,536,109,593.27
  5. Step 5: Solve for x
    x = 19,536,109,593.27/160,118.48
  6. Step 6: Final answer
    x = 122,010.34

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1.5x scale

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.