Home / 208,513.08-312,657.19-112,501.76

Finding the Fourth Proportional to 208,513.08, 312,657.19 and 112,501.76

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Solution

The fourth proportional to 208,513.08, 312,657.19 and 112,501.76 is: 168,691.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,513.08 : 312,657.19 = 112,501.76 : x
  2. Step 2: Convert to fraction form
    208,513.08/312,657.19 = 112,501.76/x
  3. Step 3: Cross multiply
    208,513.08x = 312,657.19 × 112,501.76
  4. Step 4: Simplify right side
    208,513.08x = 35,174,482,307.11
  5. Step 5: Solve for x
    x = 35,174,482,307.11/208,513.08
  6. Step 6: Final answer
    x = 168,691.97

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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.