Home / 163,239.11-225,266.81-90,638.24

Finding the Fourth Proportional to 163,239.11, 225,266.81 and 90,638.24

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Solution

The fourth proportional to 163,239.11, 225,266.81 and 90,638.24 is: 125,079.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,239.11 : 225,266.81 = 90,638.24 : x
  2. Step 2: Convert to fraction form
    163,239.11/225,266.81 = 90,638.24/x
  3. Step 3: Cross multiply
    163,239.11x = 225,266.81 × 90,638.24
  4. Step 4: Simplify right side
    163,239.11x = 20,417,785,609.29
  5. Step 5: Solve for x
    x = 20,417,785,609.29/163,239.11
  6. Step 6: Final answer
    x = 125,079.01

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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.