Home / 124,140.75-186,211.61-30,646.50

Finding the Fourth Proportional to 124,140.75, 186,211.61 and 30,646.50

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Solution

The fourth proportional to 124,140.75, 186,211.61 and 30,646.50 is: 45,969.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,140.75 : 186,211.61 = 30,646.50 : x
  2. Step 2: Convert to fraction form
    124,140.75/186,211.61 = 30,646.50/x
  3. Step 3: Cross multiply
    124,140.75x = 186,211.61 × 30,646.50
  4. Step 4: Simplify right side
    124,140.75x = 5,706,733,952.63
  5. Step 5: Solve for x
    x = 5,706,733,952.63/124,140.75
  6. Step 6: Final answer
    x = 45,969.87

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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.