Home / 230,639.81-345,957.65-72,868.25

Finding the Fourth Proportional to 230,639.81, 345,957.65 and 72,868.25

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Solution

The fourth proportional to 230,639.81, 345,957.65 and 72,868.25 is: 109,301.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,639.81 : 345,957.65 = 72,868.25 : x
  2. Step 2: Convert to fraction form
    230,639.81/345,957.65 = 72,868.25/x
  3. Step 3: Cross multiply
    230,639.81x = 345,957.65 × 72,868.25
  4. Step 4: Simplify right side
    230,639.81x = 25,209,328,165.27
  5. Step 5: Solve for x
    x = 25,209,328,165.27/230,639.81
  6. Step 6: Final answer
    x = 109,301.72

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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.