Home / 208,071.18-287,056.53-120,841.43

Finding the Fourth Proportional to 208,071.18, 287,056.53 and 120,841.43

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Solution

The fourth proportional to 208,071.18, 287,056.53 and 120,841.43 is: 166,713.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,071.18 : 287,056.53 = 120,841.43 : x
  2. Step 2: Convert to fraction form
    208,071.18/287,056.53 = 120,841.43/x
  3. Step 3: Cross multiply
    208,071.18x = 287,056.53 × 120,841.43
  4. Step 4: Simplify right side
    208,071.18x = 34,688,321,576.04
  5. Step 5: Solve for x
    x = 34,688,321,576.04/208,071.18
  6. Step 6: Final answer
    x = 166,713.73

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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.