Home / 163,048.83-225,007.41-91,428.90

Finding the Fourth Proportional to 163,048.83, 225,007.41 and 91,428.90

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Solution

The fourth proportional to 163,048.83, 225,007.41 and 91,428.90 is: 126,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,048.83 : 225,007.41 = 91,428.90 : x
  2. Step 2: Convert to fraction form
    163,048.83/225,007.41 = 91,428.90/x
  3. Step 3: Cross multiply
    163,048.83x = 225,007.41 × 91,428.90
  4. Step 4: Simplify right side
    163,048.83x = 20,572,179,988.15
  5. Step 5: Solve for x
    x = 20,572,179,988.15/163,048.83
  6. Step 6: Final answer
    x = 126,171.90

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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.