Home / 142,644.10-213,845.73-89,937.40

Finding the Fourth Proportional to 142,644.10, 213,845.73 and 89,937.40

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Solution

The fourth proportional to 142,644.10, 213,845.73 and 89,937.40 is: 134,830.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,644.10 : 213,845.73 = 89,937.40 : x
  2. Step 2: Convert to fraction form
    142,644.10/213,845.73 = 89,937.40/x
  3. Step 3: Cross multiply
    142,644.10x = 213,845.73 × 89,937.40
  4. Step 4: Simplify right side
    142,644.10x = 19,232,728,957.30
  5. Step 5: Solve for x
    x = 19,232,728,957.30/142,644.10
  6. Step 6: Final answer
    x = 134,830.17

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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.