Home / 145,836.64-218,765.68-52,343.20

Finding the Fourth Proportional to 145,836.64, 218,765.68 and 52,343.20

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Solution

The fourth proportional to 145,836.64, 218,765.68 and 52,343.20 is: 78,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,836.64 : 218,765.68 = 52,343.20 : x
  2. Step 2: Convert to fraction form
    145,836.64/218,765.68 = 52,343.20/x
  3. Step 3: Cross multiply
    145,836.64x = 218,765.68 × 52,343.20
  4. Step 4: Simplify right side
    145,836.64x = 11,450,895,741.38
  5. Step 5: Solve for x
    x = 11,450,895,741.38/145,836.64
  6. Step 6: Final answer
    x = 78,518.65

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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.