Home / 190,133.28-262,386-105,251.76

Finding the Fourth Proportional to 190,133.28, 262,386 and 105,251.76

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Solution

The fourth proportional to 190,133.28, 262,386 and 105,251.76 is: 145,248.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,133.28 : 262,386 = 105,251.76 : x
  2. Step 2: Convert to fraction form
    190,133.28/262,386 = 105,251.76/x
  3. Step 3: Cross multiply
    190,133.28x = 262,386 × 105,251.76
  4. Step 4: Simplify right side
    190,133.28x = 27,616,588,299.36
  5. Step 5: Solve for x
    x = 27,616,588,299.36/190,133.28
  6. Step 6: Final answer
    x = 145,248.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.