Home / 135,095.08-186,431.52-74,664.40

Finding the Fourth Proportional to 135,095.08, 186,431.52 and 74,664.40

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Solution

The fourth proportional to 135,095.08, 186,431.52 and 74,664.40 is: 103,037.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,095.08 : 186,431.52 = 74,664.40 : x
  2. Step 2: Convert to fraction form
    135,095.08/186,431.52 = 74,664.40/x
  3. Step 3: Cross multiply
    135,095.08x = 186,431.52 × 74,664.40
  4. Step 4: Simplify right side
    135,095.08x = 13,919,797,581.89
  5. Step 5: Solve for x
    x = 13,919,797,581.89/135,095.08
  6. Step 6: Final answer
    x = 103,037.04

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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.