Home / 135,030.08-186,338.86-74,601.36

Finding the Fourth Proportional to 135,030.08, 186,338.86 and 74,601.36

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Solution

The fourth proportional to 135,030.08, 186,338.86 and 74,601.36 is: 102,948.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,030.08 : 186,338.86 = 74,601.36 : x
  2. Step 2: Convert to fraction form
    135,030.08/186,338.86 = 74,601.36/x
  3. Step 3: Cross multiply
    135,030.08x = 186,338.86 × 74,601.36
  4. Step 4: Simplify right side
    135,030.08x = 13,901,132,376.85
  5. Step 5: Solve for x
    x = 13,901,132,376.85/135,030.08
  6. Step 6: Final answer
    x = 102,948.41

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1.5x scale

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.