Home / 102,732.02-141,769.40-57,409.48

Finding the Fourth Proportional to 102,732.02, 141,769.40 and 57,409.48

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Solution

The fourth proportional to 102,732.02, 141,769.40 and 57,409.48 is: 79,224.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,732.02 : 141,769.40 = 57,409.48 : x
  2. Step 2: Convert to fraction form
    102,732.02/141,769.40 = 57,409.48/x
  3. Step 3: Cross multiply
    102,732.02x = 141,769.40 × 57,409.48
  4. Step 4: Simplify right side
    102,732.02x = 8,138,907,533.91
  5. Step 5: Solve for x
    x = 8,138,907,533.91/102,732.02
  6. Step 6: Final answer
    x = 79,224.64

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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.