Home / 163,015.48-225,001.38-99,388.36

Finding the Fourth Proportional to 163,015.48, 225,001.38 and 99,388.36

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Solution

The fourth proportional to 163,015.48, 225,001.38 and 99,388.36 is: 137,180.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,015.48 : 225,001.38 = 99,388.36 : x
  2. Step 2: Convert to fraction form
    163,015.48/225,001.38 = 99,388.36/x
  3. Step 3: Cross multiply
    163,015.48x = 225,001.38 × 99,388.36
  4. Step 4: Simplify right side
    163,015.48x = 22,362,518,155.94
  5. Step 5: Solve for x
    x = 22,362,518,155.94/163,015.48
  6. Step 6: Final answer
    x = 137,180.33

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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.