Home / 103,316.28-154,954.71-28,417.56

Finding the Fourth Proportional to 103,316.28, 154,954.71 and 28,417.56

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Solution

The fourth proportional to 103,316.28, 154,954.71 and 28,417.56 is: 42,620.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,316.28 : 154,954.71 = 28,417.56 : x
  2. Step 2: Convert to fraction form
    103,316.28/154,954.71 = 28,417.56/x
  3. Step 3: Cross multiply
    103,316.28x = 154,954.71 × 28,417.56
  4. Step 4: Simplify right side
    103,316.28x = 4,403,434,768.71
  5. Step 5: Solve for x
    x = 4,403,434,768.71/103,316.28
  6. Step 6: Final answer
    x = 42,620.92

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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.