Home / 156,189.32-215,380.16-133,603.08

Finding the Fourth Proportional to 156,189.32, 215,380.16 and 133,603.08

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Solution

The fourth proportional to 156,189.32, 215,380.16 and 133,603.08 is: 184,234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,189.32 : 215,380.16 = 133,603.08 : x
  2. Step 2: Convert to fraction form
    156,189.32/215,380.16 = 133,603.08/x
  3. Step 3: Cross multiply
    156,189.32x = 215,380.16 × 133,603.08
  4. Step 4: Simplify right side
    156,189.32x = 28,775,452,746.89
  5. Step 5: Solve for x
    x = 28,775,452,746.89/156,189.32
  6. Step 6: Final answer
    x = 184,234.45

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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.