Home / 112,115.53-154,718.67-61,814.53

Finding the Fourth Proportional to 112,115.53, 154,718.67 and 61,814.53

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Solution

The fourth proportional to 112,115.53, 154,718.67 and 61,814.53 is: 85,303.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,115.53 : 154,718.67 = 61,814.53 : x
  2. Step 2: Convert to fraction form
    112,115.53/154,718.67 = 61,814.53/x
  3. Step 3: Cross multiply
    112,115.53x = 154,718.67 × 61,814.53
  4. Step 4: Simplify right side
    112,115.53x = 9,563,861,868.28
  5. Step 5: Solve for x
    x = 9,563,861,868.28/112,115.53
  6. Step 6: Final answer
    x = 85,303.63

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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.