Home / 147,747.10-221,292.60-121,503.10

Finding the Fourth Proportional to 147,747.10, 221,292.60 and 121,503.10

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Solution

The fourth proportional to 147,747.10, 221,292.60 and 121,503.10 is: 181,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,747.10 : 221,292.60 = 121,503.10 : x
  2. Step 2: Convert to fraction form
    147,747.10/221,292.60 = 121,503.10/x
  3. Step 3: Cross multiply
    147,747.10x = 221,292.60 × 121,503.10
  4. Step 4: Simplify right side
    147,747.10x = 26,887,736,907.06
  5. Step 5: Solve for x
    x = 26,887,736,907.06/147,747.10
  6. Step 6: Final answer
    x = 181,984.87

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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.