Home / 137,898.92-190,174.06-89,450.34

Finding the Fourth Proportional to 137,898.92, 190,174.06 and 89,450.34

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Solution

The fourth proportional to 137,898.92, 190,174.06 and 89,450.34 is: 123,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,898.92 : 190,174.06 = 89,450.34 : x
  2. Step 2: Convert to fraction form
    137,898.92/190,174.06 = 89,450.34/x
  3. Step 3: Cross multiply
    137,898.92x = 190,174.06 × 89,450.34
  4. Step 4: Simplify right side
    137,898.92x = 17,011,134,326.18
  5. Step 5: Solve for x
    x = 17,011,134,326.18/137,898.92
  6. Step 6: Final answer
    x = 123,359.45

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1.5x scale

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.