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Finding the Fourth Proportional to 183,719.78, 253,526.80 and 103,150.70

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Solution

The fourth proportional to 183,719.78, 253,526.80 and 103,150.70 is: 142,344.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,719.78 : 253,526.80 = 103,150.70 : x
  2. Step 2: Convert to fraction form
    183,719.78/253,526.80 = 103,150.70/x
  3. Step 3: Cross multiply
    183,719.78x = 253,526.80 × 103,150.70
  4. Step 4: Simplify right side
    183,719.78x = 26,151,466,888.76
  5. Step 5: Solve for x
    x = 26,151,466,888.76/183,719.78
  6. Step 6: Final answer
    x = 142,344.32

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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.