Home / 144,905.40-217,358.10-51,420.60

Finding the Fourth Proportional to 144,905.40, 217,358.10 and 51,420.60

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Solution

The fourth proportional to 144,905.40, 217,358.10 and 51,420.60 is: 77,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,905.40 : 217,358.10 = 51,420.60 : x
  2. Step 2: Convert to fraction form
    144,905.40/217,358.10 = 51,420.60/x
  3. Step 3: Cross multiply
    144,905.40x = 217,358.10 × 51,420.60
  4. Step 4: Simplify right side
    144,905.40x = 11,176,683,916.86
  5. Step 5: Solve for x
    x = 11,176,683,916.86/144,905.40
  6. Step 6: Final answer
    x = 77,130.90

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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.