Home / 103,461.50-142,772.83-63,242.57

Finding the Fourth Proportional to 103,461.50, 142,772.83 and 63,242.57

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Solution

The fourth proportional to 103,461.50, 142,772.83 and 63,242.57 is: 87,272.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,461.50 : 142,772.83 = 63,242.57 : x
  2. Step 2: Convert to fraction form
    103,461.50/142,772.83 = 63,242.57/x
  3. Step 3: Cross multiply
    103,461.50x = 142,772.83 × 63,242.57
  4. Step 4: Simplify right side
    103,461.50x = 9,029,320,894.20
  5. Step 5: Solve for x
    x = 9,029,320,894.20/103,461.50
  6. Step 6: Final answer
    x = 87,272.28

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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.