Home / 207,811.98-286,780.50-112,318.65

Finding the Fourth Proportional to 207,811.98, 286,780.50 and 112,318.65

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Solution

The fourth proportional to 207,811.98, 286,780.50 and 112,318.65 is: 154,999.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,811.98 : 286,780.50 = 112,318.65 : x
  2. Step 2: Convert to fraction form
    207,811.98/286,780.50 = 112,318.65/x
  3. Step 3: Cross multiply
    207,811.98x = 286,780.50 × 112,318.65
  4. Step 4: Simplify right side
    207,811.98x = 32,210,798,606.33
  5. Step 5: Solve for x
    x = 32,210,798,606.33/207,811.98
  6. Step 6: Final answer
    x = 154,999.72

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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.