Home / 102,087.77-140,883.56-56,767.65

Finding the Fourth Proportional to 102,087.77, 140,883.56 and 56,767.65

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Solution

The fourth proportional to 102,087.77, 140,883.56 and 56,767.65 is: 78,340.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,087.77 : 140,883.56 = 56,767.65 : x
  2. Step 2: Convert to fraction form
    102,087.77/140,883.56 = 56,767.65/x
  3. Step 3: Cross multiply
    102,087.77x = 140,883.56 × 56,767.65
  4. Step 4: Simplify right side
    102,087.77x = 7,997,628,341.00
  5. Step 5: Solve for x
    x = 7,997,628,341.00/102,087.77
  6. Step 6: Final answer
    x = 78,340.71

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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.