Home / 183,715.78-253,521.28-103,146.70

Finding the Fourth Proportional to 183,715.78, 253,521.28 and 103,146.70

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Solution

The fourth proportional to 183,715.78, 253,521.28 and 103,146.70 is: 142,338.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,715.78 : 253,521.28 = 103,146.70 : x
  2. Step 2: Convert to fraction form
    183,715.78/253,521.28 = 103,146.70/x
  3. Step 3: Cross multiply
    183,715.78x = 253,521.28 × 103,146.70
  4. Step 4: Simplify right side
    183,715.78x = 26,149,883,871.60
  5. Step 5: Solve for x
    x = 26,149,883,871.60/183,715.78
  6. Step 6: Final answer
    x = 142,338.80

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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.