Home / 207,655.09-286,558.05-117,009.40

Finding the Fourth Proportional to 207,655.09, 286,558.05 and 117,009.40

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Solution

The fourth proportional to 207,655.09, 286,558.05 and 117,009.40 is: 161,469.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,655.09 : 286,558.05 = 117,009.40 : x
  2. Step 2: Convert to fraction form
    207,655.09/286,558.05 = 117,009.40/x
  3. Step 3: Cross multiply
    207,655.09x = 286,558.05 × 117,009.40
  4. Step 4: Simplify right side
    207,655.09x = 33,529,985,495.67
  5. Step 5: Solve for x
    x = 33,529,985,495.67/207,655.09
  6. Step 6: Final answer
    x = 161,469.61

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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.