Home / 134,911.18-186,183.66-74,490.40

Finding the Fourth Proportional to 134,911.18, 186,183.66 and 74,490.40

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Solution

The fourth proportional to 134,911.18, 186,183.66 and 74,490.40 is: 102,800.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,911.18 : 186,183.66 = 74,490.40 : x
  2. Step 2: Convert to fraction form
    134,911.18/186,183.66 = 74,490.40/x
  3. Step 3: Cross multiply
    134,911.18x = 186,183.66 × 74,490.40
  4. Step 4: Simplify right side
    134,911.18x = 13,868,895,306.86
  5. Step 5: Solve for x
    x = 13,868,895,306.86/134,911.18
  6. Step 6: Final answer
    x = 102,800.19

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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.