Home / 156,317.01-215,716.05-84,696.81

Finding the Fourth Proportional to 156,317.01, 215,716.05 and 84,696.81

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Solution

The fourth proportional to 156,317.01, 215,716.05 and 84,696.81 is: 116,880.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,317.01 : 215,716.05 = 84,696.81 : x
  2. Step 2: Convert to fraction form
    156,317.01/215,716.05 = 84,696.81/x
  3. Step 3: Cross multiply
    156,317.01x = 215,716.05 × 84,696.81
  4. Step 4: Simplify right side
    156,317.01x = 18,270,461,300.80
  5. Step 5: Solve for x
    x = 18,270,461,300.80/156,317.01
  6. Step 6: Final answer
    x = 116,880.83

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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.