Home / 127,898.21-191,683.13-61,238.45

Finding the Fourth Proportional to 127,898.21, 191,683.13 and 61,238.45

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Solution

The fourth proportional to 127,898.21, 191,683.13 and 61,238.45 is: 91,779.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,898.21 : 191,683.13 = 61,238.45 : x
  2. Step 2: Convert to fraction form
    127,898.21/191,683.13 = 61,238.45/x
  3. Step 3: Cross multiply
    127,898.21x = 191,683.13 × 61,238.45
  4. Step 4: Simplify right side
    127,898.21x = 11,738,376,507.74
  5. Step 5: Solve for x
    x = 11,738,376,507.74/127,898.21
  6. Step 6: Final answer
    x = 91,779.06

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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.