Home / 153,938.70-230,908.05-54,114.30

Finding the Fourth Proportional to 153,938.70, 230,908.05 and 54,114.30

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Solution

The fourth proportional to 153,938.70, 230,908.05 and 54,114.30 is: 81,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,938.70 : 230,908.05 = 54,114.30 : x
  2. Step 2: Convert to fraction form
    153,938.70/230,908.05 = 54,114.30/x
  3. Step 3: Cross multiply
    153,938.70x = 230,908.05 × 54,114.30
  4. Step 4: Simplify right side
    153,938.70x = 12,495,427,490.12
  5. Step 5: Solve for x
    x = 12,495,427,490.12/153,938.70
  6. Step 6: Final answer
    x = 81,171.45

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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.