Home / 102,395.35-141,303.45-57,073.15

Finding the Fourth Proportional to 102,395.35, 141,303.45 and 57,073.15

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Solution

The fourth proportional to 102,395.35, 141,303.45 and 57,073.15 is: 78,759.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,395.35 : 141,303.45 = 57,073.15 : x
  2. Step 2: Convert to fraction form
    102,395.35/141,303.45 = 57,073.15/x
  3. Step 3: Cross multiply
    102,395.35x = 141,303.45 × 57,073.15
  4. Step 4: Simplify right side
    102,395.35x = 8,064,632,997.37
  5. Step 5: Solve for x
    x = 8,064,632,997.37/102,395.35
  6. Step 6: Final answer
    x = 78,759.76

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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.