Home / 150,301.04-207,415.50-86,638.28

Finding the Fourth Proportional to 150,301.04, 207,415.50 and 86,638.28

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Solution

The fourth proportional to 150,301.04, 207,415.50 and 86,638.28 is: 119,560.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,301.04 : 207,415.50 = 86,638.28 : x
  2. Step 2: Convert to fraction form
    150,301.04/207,415.50 = 86,638.28/x
  3. Step 3: Cross multiply
    150,301.04x = 207,415.50 × 86,638.28
  4. Step 4: Simplify right side
    150,301.04x = 17,970,122,165.34
  5. Step 5: Solve for x
    x = 17,970,122,165.34/150,301.04
  6. Step 6: Final answer
    x = 119,560.86

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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.