Home / 142,683.49-214,058.04-42,845.57

Finding the Fourth Proportional to 142,683.49, 214,058.04 and 42,845.57

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Solution

The fourth proportional to 142,683.49, 214,058.04 and 42,845.57 is: 64,278.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,683.49 : 214,058.04 = 42,845.57 : x
  2. Step 2: Convert to fraction form
    142,683.49/214,058.04 = 42,845.57/x
  3. Step 3: Cross multiply
    142,683.49x = 214,058.04 × 42,845.57
  4. Step 4: Simplify right side
    142,683.49x = 9,171,439,111.36
  5. Step 5: Solve for x
    x = 9,171,439,111.36/142,683.49
  6. Step 6: Final answer
    x = 64,278.21

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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.