Home / 102,199.77-141,002.87-61,900.65

Finding the Fourth Proportional to 102,199.77, 141,002.87 and 61,900.65

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Solution

The fourth proportional to 102,199.77, 141,002.87 and 61,900.65 is: 85,403.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,199.77 : 141,002.87 = 61,900.65 : x
  2. Step 2: Convert to fraction form
    102,199.77/141,002.87 = 61,900.65/x
  3. Step 3: Cross multiply
    102,199.77x = 141,002.87 × 61,900.65
  4. Step 4: Simplify right side
    102,199.77x = 8,728,168,995.36
  5. Step 5: Solve for x
    x = 8,728,168,995.36/102,199.77
  6. Step 6: Final answer
    x = 85,403.02

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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.