Home / 71,683.83-106,988.67-70,501.34

Finding the Fourth Proportional to 71,683.83, 106,988.67 and 70,501.34

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Solution

The fourth proportional to 71,683.83, 106,988.67 and 70,501.34 is: 105,223.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,683.83 : 106,988.67 = 70,501.34 : x
  2. Step 2: Convert to fraction form
    71,683.83/106,988.67 = 70,501.34/x
  3. Step 3: Cross multiply
    71,683.83x = 106,988.67 × 70,501.34
  4. Step 4: Simplify right side
    71,683.83x = 7,542,844,064.87
  5. Step 5: Solve for x
    x = 7,542,844,064.87/71,683.83
  6. Step 6: Final answer
    x = 105,223.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.