Home / 106,606.28-147,058.43-74,289.71

Finding the Fourth Proportional to 106,606.28, 147,058.43 and 74,289.71

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Solution

The fourth proportional to 106,606.28, 147,058.43 and 74,289.71 is: 102,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,606.28 : 147,058.43 = 74,289.71 : x
  2. Step 2: Convert to fraction form
    106,606.28/147,058.43 = 74,289.71/x
  3. Step 3: Cross multiply
    106,606.28x = 147,058.43 × 74,289.71
  4. Step 4: Simplify right side
    106,606.28x = 10,924,927,011.01
  5. Step 5: Solve for x
    x = 10,924,927,011.01/106,606.28
  6. Step 6: Final answer
    x = 102,479.21

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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.