Home / 134,885.87-186,142.53-74,456.55

Finding the Fourth Proportional to 134,885.87, 186,142.53 and 74,456.55

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Solution

The fourth proportional to 134,885.87, 186,142.53 and 74,456.55 is: 102,750.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,885.87 : 186,142.53 = 74,456.55 : x
  2. Step 2: Convert to fraction form
    134,885.87/186,142.53 = 74,456.55/x
  3. Step 3: Cross multiply
    134,885.87x = 186,142.53 × 74,456.55
  4. Step 4: Simplify right side
    134,885.87x = 13,859,529,289.08
  5. Step 5: Solve for x
    x = 13,859,529,289.08/134,885.87
  6. Step 6: Final answer
    x = 102,750.05

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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.