Home / 122,513.40-183,683.21-47,570.40

Finding the Fourth Proportional to 122,513.40, 183,683.21 and 47,570.40

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Solution

The fourth proportional to 122,513.40, 183,683.21 and 47,570.40 is: 71,321.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,513.40 : 183,683.21 = 47,570.40 : x
  2. Step 2: Convert to fraction form
    122,513.40/183,683.21 = 47,570.40/x
  3. Step 3: Cross multiply
    122,513.40x = 183,683.21 × 47,570.40
  4. Step 4: Simplify right side
    122,513.40x = 8,737,883,535.13
  5. Step 5: Solve for x
    x = 8,737,883,535.13/122,513.40
  6. Step 6: Final answer
    x = 71,321.86

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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.