Home / 99,327.60-148,907.40-43,125.28

Finding the Fourth Proportional to 99,327.60, 148,907.40 and 43,125.28

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Solution

The fourth proportional to 99,327.60, 148,907.40 and 43,125.28 is: 64,651.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,327.60 : 148,907.40 = 43,125.28 : x
  2. Step 2: Convert to fraction form
    99,327.60/148,907.40 = 43,125.28/x
  3. Step 3: Cross multiply
    99,327.60x = 148,907.40 × 43,125.28
  4. Step 4: Simplify right side
    99,327.60x = 6,421,673,319.07
  5. Step 5: Solve for x
    x = 6,421,673,319.07/99,327.60
  6. Step 6: Final answer
    x = 64,651.45

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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.