Home / 134,798.40-186,020.02-74,371.60

Finding the Fourth Proportional to 134,798.40, 186,020.02 and 74,371.60

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Solution

The fourth proportional to 134,798.40, 186,020.02 and 74,371.60 is: 102,631.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,798.40 : 186,020.02 = 74,371.60 : x
  2. Step 2: Convert to fraction form
    134,798.40/186,020.02 = 74,371.60/x
  3. Step 3: Cross multiply
    134,798.40x = 186,020.02 × 74,371.60
  4. Step 4: Simplify right side
    134,798.40x = 13,834,606,519.43
  5. Step 5: Solve for x
    x = 13,834,606,519.43/134,798.40
  6. Step 6: Final answer
    x = 102,631.83

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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.