Home / 168,916.40-253,374.60-155,138.30

Finding the Fourth Proportional to 168,916.40, 253,374.60 and 155,138.30

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Solution

The fourth proportional to 168,916.40, 253,374.60 and 155,138.30 is: 232,707.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,916.40 : 253,374.60 = 155,138.30 : x
  2. Step 2: Convert to fraction form
    168,916.40/253,374.60 = 155,138.30/x
  3. Step 3: Cross multiply
    168,916.40x = 253,374.60 × 155,138.30
  4. Step 4: Simplify right side
    168,916.40x = 39,308,104,707.18
  5. Step 5: Solve for x
    x = 39,308,104,707.18/168,916.40
  6. Step 6: Final answer
    x = 232,707.45

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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.