Home / 147,765.48-203,907.96-87,341.70

Finding the Fourth Proportional to 147,765.48, 203,907.96 and 87,341.70

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Solution

The fourth proportional to 147,765.48, 203,907.96 and 87,341.70 is: 120,526.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,765.48 : 203,907.96 = 87,341.70 : x
  2. Step 2: Convert to fraction form
    147,765.48/203,907.96 = 87,341.70/x
  3. Step 3: Cross multiply
    147,765.48x = 203,907.96 × 87,341.70
  4. Step 4: Simplify right side
    147,765.48x = 17,809,667,869.93
  5. Step 5: Solve for x
    x = 17,809,667,869.93/147,765.48
  6. Step 6: Final answer
    x = 120,526.58

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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.