Home / 127,406.40-191,130.33-47,444.67

Finding the Fourth Proportional to 127,406.40, 191,130.33 and 47,444.67

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Solution

The fourth proportional to 127,406.40, 191,130.33 and 47,444.67 is: 71,174.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,406.40 : 191,130.33 = 47,444.67 : x
  2. Step 2: Convert to fraction form
    127,406.40/191,130.33 = 47,444.67/x
  3. Step 3: Cross multiply
    127,406.40x = 191,130.33 × 47,444.67
  4. Step 4: Simplify right side
    127,406.40x = 9,068,115,433.84
  5. Step 5: Solve for x
    x = 9,068,115,433.84/127,406.40
  6. Step 6: Final answer
    x = 71,174.72

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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.