Home / 165,916.70-248,875.05-156,931.10

Finding the Fourth Proportional to 165,916.70, 248,875.05 and 156,931.10

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Solution

The fourth proportional to 165,916.70, 248,875.05 and 156,931.10 is: 235,396.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,916.70 : 248,875.05 = 156,931.10 : x
  2. Step 2: Convert to fraction form
    165,916.70/248,875.05 = 156,931.10/x
  3. Step 3: Cross multiply
    165,916.70x = 248,875.05 × 156,931.10
  4. Step 4: Simplify right side
    165,916.70x = 39,056,235,359.06
  5. Step 5: Solve for x
    x = 39,056,235,359.06/165,916.70
  6. Step 6: Final answer
    x = 235,396.65

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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.