Home / 98,683.81-136,174.03-55,670.07

Finding the Fourth Proportional to 98,683.81, 136,174.03 and 55,670.07

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Solution

The fourth proportional to 98,683.81, 136,174.03 and 55,670.07 is: 76,819.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,683.81 : 136,174.03 = 55,670.07 : x
  2. Step 2: Convert to fraction form
    98,683.81/136,174.03 = 55,670.07/x
  3. Step 3: Cross multiply
    98,683.81x = 136,174.03 × 55,670.07
  4. Step 4: Simplify right side
    98,683.81x = 7,580,818,153.76
  5. Step 5: Solve for x
    x = 7,580,818,153.76/98,683.81
  6. Step 6: Final answer
    x = 76,819.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.