Home / 205,096.60-307,688.10-64,869.40

Finding the Fourth Proportional to 205,096.60, 307,688.10 and 64,869.40

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Solution

The fourth proportional to 205,096.60, 307,688.10 and 64,869.40 is: 97,317.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,096.60 : 307,688.10 = 64,869.40 : x
  2. Step 2: Convert to fraction form
    205,096.60/307,688.10 = 64,869.40/x
  3. Step 3: Cross multiply
    205,096.60x = 307,688.10 × 64,869.40
  4. Step 4: Simplify right side
    205,096.60x = 19,959,542,434.14
  5. Step 5: Solve for x
    x = 19,959,542,434.14/205,096.60
  6. Step 6: Final answer
    x = 97,317.76

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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.