Home / 135,485.76-186,966.88-74,231.52

Finding the Fourth Proportional to 135,485.76, 186,966.88 and 74,231.52

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Solution

The fourth proportional to 135,485.76, 186,966.88 and 74,231.52 is: 102,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,485.76 : 186,966.88 = 74,231.52 : x
  2. Step 2: Convert to fraction form
    135,485.76/186,966.88 = 74,231.52/x
  3. Step 3: Cross multiply
    135,485.76x = 186,966.88 × 74,231.52
  4. Step 4: Simplify right side
    135,485.76x = 13,878,835,692.06
  5. Step 5: Solve for x
    x = 13,878,835,692.06/135,485.76
  6. Step 6: Final answer
    x = 102,437.60

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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.