Home / 103,210-154,685.48-55,823.20

Finding the Fourth Proportional to 103,210, 154,685.48 and 55,823.20

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Solution

The fourth proportional to 103,210, 154,685.48 and 55,823.20 is: 83,664.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,210 : 154,685.48 = 55,823.20 : x
  2. Step 2: Convert to fraction form
    103,210/154,685.48 = 55,823.20/x
  3. Step 3: Cross multiply
    103,210x = 154,685.48 × 55,823.20
  4. Step 4: Simplify right side
    103,210x = 8,635,038,487.14
  5. Step 5: Solve for x
    x = 8,635,038,487.14/103,210
  6. Step 6: Final answer
    x = 83,664.75

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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.