Home / 145,631.92-218,277.42-55,615.66

Finding the Fourth Proportional to 145,631.92, 218,277.42 and 55,615.66

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Solution

The fourth proportional to 145,631.92, 218,277.42 and 55,615.66 is: 83,358.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,631.92 : 218,277.42 = 55,615.66 : x
  2. Step 2: Convert to fraction form
    145,631.92/218,277.42 = 55,615.66/x
  3. Step 3: Cross multiply
    145,631.92x = 218,277.42 × 55,615.66
  4. Step 4: Simplify right side
    145,631.92x = 12,139,642,776.40
  5. Step 5: Solve for x
    x = 12,139,642,776.40/145,631.92
  6. Step 6: Final answer
    x = 83,358.39

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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.