Home / 126,127.60-189,095.40-63,842.80

Finding the Fourth Proportional to 126,127.60, 189,095.40 and 63,842.80

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Solution

The fourth proportional to 126,127.60, 189,095.40 and 63,842.80 is: 95,715.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,127.60 : 189,095.40 = 63,842.80 : x
  2. Step 2: Convert to fraction form
    126,127.60/189,095.40 = 63,842.80/x
  3. Step 3: Cross multiply
    126,127.60x = 189,095.40 × 63,842.80
  4. Step 4: Simplify right side
    126,127.60x = 12,072,379,803.12
  5. Step 5: Solve for x
    x = 12,072,379,803.12/126,127.60
  6. Step 6: Final answer
    x = 95,715.61

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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.