Home / 156,725.85-235,189.58-86,655.45

Finding the Fourth Proportional to 156,725.85, 235,189.58 and 86,655.45

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Solution

The fourth proportional to 156,725.85, 235,189.58 and 86,655.45 is: 130,038.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,725.85 : 235,189.58 = 86,655.45 : x
  2. Step 2: Convert to fraction form
    156,725.85/235,189.58 = 86,655.45/x
  3. Step 3: Cross multiply
    156,725.85x = 235,189.58 × 86,655.45
  4. Step 4: Simplify right side
    156,725.85x = 20,380,458,456.93
  5. Step 5: Solve for x
    x = 20,380,458,456.93/156,725.85
  6. Step 6: Final answer
    x = 130,038.91

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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.