Home / 156,015.14-215,300.76-84,395.14

Finding the Fourth Proportional to 156,015.14, 215,300.76 and 84,395.14

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Solution

The fourth proportional to 156,015.14, 215,300.76 and 84,395.14 is: 116,465.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,015.14 : 215,300.76 = 84,395.14 : x
  2. Step 2: Convert to fraction form
    156,015.14/215,300.76 = 84,395.14/x
  3. Step 3: Cross multiply
    156,015.14x = 215,300.76 × 84,395.14
  4. Step 4: Simplify right side
    156,015.14x = 18,170,337,770.47
  5. Step 5: Solve for x
    x = 18,170,337,770.47/156,015.14
  6. Step 6: Final answer
    x = 116,465.22

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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.