Home / 156,100.70-234,150.70-120,613.58

Finding the Fourth Proportional to 156,100.70, 234,150.70 and 120,613.58

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Solution

The fourth proportional to 156,100.70, 234,150.70 and 120,613.58 is: 180,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,100.70 : 234,150.70 = 120,613.58 : x
  2. Step 2: Convert to fraction form
    156,100.70/234,150.70 = 120,613.58/x
  3. Step 3: Cross multiply
    156,100.70x = 234,150.70 × 120,613.58
  4. Step 4: Simplify right side
    156,100.70x = 28,241,754,186.51
  5. Step 5: Solve for x
    x = 28,241,754,186.51/156,100.70
  6. Step 6: Final answer
    x = 180,920.10

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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.