Home / 156,071.70-215,379.69-88,091.55

Finding the Fourth Proportional to 156,071.70, 215,379.69 and 88,091.55

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Solution

The fourth proportional to 156,071.70, 215,379.69 and 88,091.55 is: 121,566.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,071.70 : 215,379.69 = 88,091.55 : x
  2. Step 2: Convert to fraction form
    156,071.70/215,379.69 = 88,091.55/x
  3. Step 3: Cross multiply
    156,071.70x = 215,379.69 × 88,091.55
  4. Step 4: Simplify right side
    156,071.70x = 18,973,130,730.62
  5. Step 5: Solve for x
    x = 18,973,130,730.62/156,071.70
  6. Step 6: Final answer
    x = 121,566.76

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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.