Home / 127,645.80-191,475.90-38,902.20

Finding the Fourth Proportional to 127,645.80, 191,475.90 and 38,902.20

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Solution

The fourth proportional to 127,645.80, 191,475.90 and 38,902.20 is: 58,355.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,645.80 : 191,475.90 = 38,902.20 : x
  2. Step 2: Convert to fraction form
    127,645.80/191,475.90 = 38,902.20/x
  3. Step 3: Cross multiply
    127,645.80x = 191,475.90 × 38,902.20
  4. Step 4: Simplify right side
    127,645.80x = 7,448,833,756.98
  5. Step 5: Solve for x
    x = 7,448,833,756.98/127,645.80
  6. Step 6: Final answer
    x = 58,355.49

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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.