Home / 102,088.77-140,884.94-56,768.65

Finding the Fourth Proportional to 102,088.77, 140,884.94 and 56,768.65

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Solution

The fourth proportional to 102,088.77, 140,884.94 and 56,768.65 is: 78,342.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,088.77 : 140,884.94 = 56,768.65 : x
  2. Step 2: Convert to fraction form
    102,088.77/140,884.94 = 56,768.65/x
  3. Step 3: Cross multiply
    102,088.77x = 140,884.94 × 56,768.65
  4. Step 4: Simplify right side
    102,088.77x = 7,997,847,849.13
  5. Step 5: Solve for x
    x = 7,997,847,849.13/102,088.77
  6. Step 6: Final answer
    x = 78,342.09

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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.