Home / 151,828.40-209,663.16-101,673.20

Finding the Fourth Proportional to 151,828.40, 209,663.16 and 101,673.20

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Solution

The fourth proportional to 151,828.40, 209,663.16 and 101,673.20 is: 140,402.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,828.40 : 209,663.16 = 101,673.20 : x
  2. Step 2: Convert to fraction form
    151,828.40/209,663.16 = 101,673.20/x
  3. Step 3: Cross multiply
    151,828.40x = 209,663.16 × 101,673.20
  4. Step 4: Simplify right side
    151,828.40x = 21,317,124,399.31
  5. Step 5: Solve for x
    x = 21,317,124,399.31/151,828.40
  6. Step 6: Final answer
    x = 140,402.75

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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.