Home / 103,524.14-155,127.81-69,664.76

Finding the Fourth Proportional to 103,524.14, 155,127.81 and 69,664.76

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Solution

The fourth proportional to 103,524.14, 155,127.81 and 69,664.76 is: 104,390.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,524.14 : 155,127.81 = 69,664.76 : x
  2. Step 2: Convert to fraction form
    103,524.14/155,127.81 = 69,664.76/x
  3. Step 3: Cross multiply
    103,524.14x = 155,127.81 × 69,664.76
  4. Step 4: Simplify right side
    103,524.14x = 10,806,941,478.81
  5. Step 5: Solve for x
    x = 10,806,941,478.81/103,524.14
  6. Step 6: Final answer
    x = 104,390.55

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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.