Home / 78,201.51-117,302.46-19,037.10

Finding the Fourth Proportional to 78,201.51, 117,302.46 and 19,037.10

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Solution

The fourth proportional to 78,201.51, 117,302.46 and 19,037.10 is: 28,555.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,201.51 : 117,302.46 = 19,037.10 : x
  2. Step 2: Convert to fraction form
    78,201.51/117,302.46 = 19,037.10/x
  3. Step 3: Cross multiply
    78,201.51x = 117,302.46 × 19,037.10
  4. Step 4: Simplify right side
    78,201.51x = 2,233,098,661.27
  5. Step 5: Solve for x
    x = 2,233,098,661.27/78,201.51
  6. Step 6: Final answer
    x = 28,555.70

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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.