Home / 114,715.95-172,183.38-70,429.20

Finding the Fourth Proportional to 114,715.95, 172,183.38 and 70,429.20

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Solution

The fourth proportional to 114,715.95, 172,183.38 and 70,429.20 is: 105,711.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,715.95 : 172,183.38 = 70,429.20 : x
  2. Step 2: Convert to fraction form
    114,715.95/172,183.38 = 70,429.20/x
  3. Step 3: Cross multiply
    114,715.95x = 172,183.38 × 70,429.20
  4. Step 4: Simplify right side
    114,715.95x = 12,126,738,744.90
  5. Step 5: Solve for x
    x = 12,126,738,744.90/114,715.95
  6. Step 6: Final answer
    x = 105,711.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.