Home / 156,768.90-235,056.15-90,176.10

Finding the Fourth Proportional to 156,768.90, 235,056.15 and 90,176.10

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Solution

The fourth proportional to 156,768.90, 235,056.15 and 90,176.10 is: 135,208.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,768.90 : 235,056.15 = 90,176.10 : x
  2. Step 2: Convert to fraction form
    156,768.90/235,056.15 = 90,176.10/x
  3. Step 3: Cross multiply
    156,768.90x = 235,056.15 × 90,176.10
  4. Step 4: Simplify right side
    156,768.90x = 21,196,446,888.02
  5. Step 5: Solve for x
    x = 21,196,446,888.02/156,768.90
  6. Step 6: Final answer
    x = 135,208.24

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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.