Home / 162,591.44-243,665.55-78,345.45

Finding the Fourth Proportional to 162,591.44, 243,665.55 and 78,345.45

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Solution

The fourth proportional to 162,591.44, 243,665.55 and 78,345.45 is: 117,411.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,591.44 : 243,665.55 = 78,345.45 : x
  2. Step 2: Convert to fraction form
    162,591.44/243,665.55 = 78,345.45/x
  3. Step 3: Cross multiply
    162,591.44x = 243,665.55 × 78,345.45
  4. Step 4: Simplify right side
    162,591.44x = 19,090,087,164.25
  5. Step 5: Solve for x
    x = 19,090,087,164.25/162,591.44
  6. Step 6: Final answer
    x = 117,411.39

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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.