Home / 156,503.09-215,975.59-84,882.94

Finding the Fourth Proportional to 156,503.09, 215,975.59 and 84,882.94

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Solution

The fourth proportional to 156,503.09, 215,975.59 and 84,882.94 is: 117,139.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,503.09 : 215,975.59 = 84,882.94 : x
  2. Step 2: Convert to fraction form
    156,503.09/215,975.59 = 84,882.94/x
  3. Step 3: Cross multiply
    156,503.09x = 215,975.59 × 84,882.94
  4. Step 4: Simplify right side
    156,503.09x = 18,332,642,534.02
  5. Step 5: Solve for x
    x = 18,332,642,534.02/156,503.09
  6. Step 6: Final answer
    x = 117,139.18

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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.