Home / 102,020.02-140,784.81-56,696.86

Finding the Fourth Proportional to 102,020.02, 140,784.81 and 56,696.86

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Solution

The fourth proportional to 102,020.02, 140,784.81 and 56,696.86 is: 78,240.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,020.02 : 140,784.81 = 56,696.86 : x
  2. Step 2: Convert to fraction form
    102,020.02/140,784.81 = 56,696.86/x
  3. Step 3: Cross multiply
    102,020.02x = 140,784.81 × 56,696.86
  4. Step 4: Simplify right side
    102,020.02x = 7,982,056,662.70
  5. Step 5: Solve for x
    x = 7,982,056,662.70/102,020.02
  6. Step 6: Final answer
    x = 78,240.10

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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.