Home / 208,316.45-287,475.27-112,820.96

Finding the Fourth Proportional to 208,316.45, 287,475.27 and 112,820.96

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Solution

The fourth proportional to 208,316.45, 287,475.27 and 112,820.96 is: 155,692.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,316.45 : 287,475.27 = 112,820.96 : x
  2. Step 2: Convert to fraction form
    208,316.45/287,475.27 = 112,820.96/x
  3. Step 3: Cross multiply
    208,316.45x = 287,475.27 × 112,820.96
  4. Step 4: Simplify right side
    208,316.45x = 32,433,235,937.66
  5. Step 5: Solve for x
    x = 32,433,235,937.66/208,316.45
  6. Step 6: Final answer
    x = 155,692.15

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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.