Home / 135,000.32-186,299.70-74,575.12

Finding the Fourth Proportional to 135,000.32, 186,299.70 and 74,575.12

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Solution

The fourth proportional to 135,000.32, 186,299.70 and 74,575.12 is: 102,913.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,000.32 : 186,299.70 = 74,575.12 : x
  2. Step 2: Convert to fraction form
    135,000.32/186,299.70 = 74,575.12/x
  3. Step 3: Cross multiply
    135,000.32x = 186,299.70 × 74,575.12
  4. Step 4: Simplify right side
    135,000.32x = 13,893,322,483.46
  5. Step 5: Solve for x
    x = 13,893,322,483.46/135,000.32
  6. Step 6: Final answer
    x = 102,913.26

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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.