Home / 163,018.48-225,005.52-99,391.36

Finding the Fourth Proportional to 163,018.48, 225,005.52 and 99,391.36

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Solution

The fourth proportional to 163,018.48, 225,005.52 and 99,391.36 is: 137,184.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,018.48 : 225,005.52 = 99,391.36 : x
  2. Step 2: Convert to fraction form
    163,018.48/225,005.52 = 99,391.36/x
  3. Step 3: Cross multiply
    163,018.48x = 225,005.52 × 99,391.36
  4. Step 4: Simplify right side
    163,018.48x = 22,363,604,640.31
  5. Step 5: Solve for x
    x = 22,363,604,640.31/163,018.48
  6. Step 6: Final answer
    x = 137,184.48

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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.