Home / 102,048.08-140,829.38-61,769.21

Finding the Fourth Proportional to 102,048.08, 140,829.38 and 61,769.21

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Solution

The fourth proportional to 102,048.08, 140,829.38 and 61,769.21 is: 85,243.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,048.08 : 140,829.38 = 61,769.21 : x
  2. Step 2: Convert to fraction form
    102,048.08/140,829.38 = 61,769.21/x
  3. Step 3: Cross multiply
    102,048.08x = 140,829.38 × 61,769.21
  4. Step 4: Simplify right side
    102,048.08x = 8,698,918,534.40
  5. Step 5: Solve for x
    x = 8,698,918,534.40/102,048.08
  6. Step 6: Final answer
    x = 85,243.34

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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.