Home / 156,784.90-235,080.15-90,192.10

Finding the Fourth Proportional to 156,784.90, 235,080.15 and 90,192.10

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Solution

The fourth proportional to 156,784.90, 235,080.15 and 90,192.10 is: 135,232.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,784.90 : 235,080.15 = 90,192.10 : x
  2. Step 2: Convert to fraction form
    156,784.90/235,080.15 = 90,192.10/x
  3. Step 3: Cross multiply
    156,784.90x = 235,080.15 × 90,192.10
  4. Step 4: Simplify right side
    156,784.90x = 21,202,372,396.82
  5. Step 5: Solve for x
    x = 21,202,372,396.82/156,784.90
  6. Step 6: Final answer
    x = 135,232.23

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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.