Home / 127,565.49-191,348.25-90,572.22

Finding the Fourth Proportional to 127,565.49, 191,348.25 and 90,572.22

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Solution

The fourth proportional to 127,565.49, 191,348.25 and 90,572.22 is: 135,858.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,565.49 : 191,348.25 = 90,572.22 : x
  2. Step 2: Convert to fraction form
    127,565.49/191,348.25 = 90,572.22/x
  3. Step 3: Cross multiply
    127,565.49x = 191,348.25 × 90,572.22
  4. Step 4: Simplify right side
    127,565.49x = 17,330,835,795.62
  5. Step 5: Solve for x
    x = 17,330,835,795.62/127,565.49
  6. Step 6: Final answer
    x = 135,858.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.