Home / 163,430.28-225,543.42-123,072.84

Finding the Fourth Proportional to 163,430.28, 225,543.42 and 123,072.84

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Solution

The fourth proportional to 163,430.28, 225,543.42 and 123,072.84 is: 169,847.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,430.28 : 225,543.42 = 123,072.84 : x
  2. Step 2: Convert to fraction form
    163,430.28/225,543.42 = 123,072.84/x
  3. Step 3: Cross multiply
    163,430.28x = 225,543.42 × 123,072.84
  4. Step 4: Simplify right side
    163,430.28x = 27,758,269,242.71
  5. Step 5: Solve for x
    x = 27,758,269,242.71/163,430.28
  6. Step 6: Final answer
    x = 169,847.77

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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.