Home / 163,254.18-225,283.19-90,661.68

Finding the Fourth Proportional to 163,254.18, 225,283.19 and 90,661.68

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Solution

The fourth proportional to 163,254.18, 225,283.19 and 90,661.68 is: 125,108.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,254.18 : 225,283.19 = 90,661.68 : x
  2. Step 2: Convert to fraction form
    163,254.18/225,283.19 = 90,661.68/x
  3. Step 3: Cross multiply
    163,254.18x = 225,283.19 × 90,661.68
  4. Step 4: Simplify right side
    163,254.18x = 20,424,552,027.85
  5. Step 5: Solve for x
    x = 20,424,552,027.85/163,254.18
  6. Step 6: Final answer
    x = 125,108.91

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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.