Home / 145,619.81-218,429.52-45,788.73

Finding the Fourth Proportional to 145,619.81, 218,429.52 and 45,788.73

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Solution

The fourth proportional to 145,619.81, 218,429.52 and 45,788.73 is: 68,683.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,619.81 : 218,429.52 = 45,788.73 : x
  2. Step 2: Convert to fraction form
    145,619.81/218,429.52 = 45,788.73/x
  3. Step 3: Cross multiply
    145,619.81x = 218,429.52 × 45,788.73
  4. Step 4: Simplify right side
    145,619.81x = 10,001,610,315.31
  5. Step 5: Solve for x
    x = 10,001,610,315.31/145,619.81
  6. Step 6: Final answer
    x = 68,683.03

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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.