Home / 127,622.40-191,426.60-38,868.47

Finding the Fourth Proportional to 127,622.40, 191,426.60 and 38,868.47

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Solution

The fourth proportional to 127,622.40, 191,426.60 and 38,868.47 is: 58,300.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,622.40 : 191,426.60 = 38,868.47 : x
  2. Step 2: Convert to fraction form
    127,622.40/191,426.60 = 38,868.47/x
  3. Step 3: Cross multiply
    127,622.40x = 191,426.60 × 38,868.47
  4. Step 4: Simplify right side
    127,622.40x = 7,440,457,907.83
  5. Step 5: Solve for x
    x = 7,440,457,907.83/127,622.40
  6. Step 6: Final answer
    x = 58,300.56

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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.