Home / 78,254.24-117,118.91-64,213.70

Finding the Fourth Proportional to 78,254.24, 117,118.91 and 64,213.70

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Solution

The fourth proportional to 78,254.24, 117,118.91 and 64,213.70 is: 96,105.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,254.24 : 117,118.91 = 64,213.70 : x
  2. Step 2: Convert to fraction form
    78,254.24/117,118.91 = 64,213.70/x
  3. Step 3: Cross multiply
    78,254.24x = 117,118.91 × 64,213.70
  4. Step 4: Simplify right side
    78,254.24x = 7,520,638,126.01
  5. Step 5: Solve for x
    x = 7,520,638,126.01/78,254.24
  6. Step 6: Final answer
    x = 96,105.19

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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.