Home / 210,787.28-290,894.52-120,157.52

Finding the Fourth Proportional to 210,787.28, 290,894.52 and 120,157.52

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Solution

The fourth proportional to 210,787.28, 290,894.52 and 120,157.52 is: 165,821.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,787.28 : 290,894.52 = 120,157.52 : x
  2. Step 2: Convert to fraction form
    210,787.28/290,894.52 = 120,157.52/x
  3. Step 3: Cross multiply
    210,787.28x = 290,894.52 × 120,157.52
  4. Step 4: Simplify right side
    210,787.28x = 34,953,164,104.79
  5. Step 5: Solve for x
    x = 34,953,164,104.79/210,787.28
  6. Step 6: Final answer
    x = 165,821.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.