Home / 163,341.36-225,390.60-91,721.16

Finding the Fourth Proportional to 163,341.36, 225,390.60 and 91,721.16

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Solution

The fourth proportional to 163,341.36, 225,390.60 and 91,721.16 is: 126,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,341.36 : 225,390.60 = 91,721.16 : x
  2. Step 2: Convert to fraction form
    163,341.36/225,390.60 = 91,721.16/x
  3. Step 3: Cross multiply
    163,341.36x = 225,390.60 × 91,721.16
  4. Step 4: Simplify right side
    163,341.36x = 20,673,087,285.10
  5. Step 5: Solve for x
    x = 20,673,087,285.10/163,341.36
  6. Step 6: Final answer
    x = 126,563.70

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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.