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Finding the Fourth Proportional to 183,970.72, 253,872.40 and 103,401.76

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Solution

The fourth proportional to 183,970.72, 253,872.40 and 103,401.76 is: 142,690.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,970.72 : 253,872.40 = 103,401.76 : x
  2. Step 2: Convert to fraction form
    183,970.72/253,872.40 = 103,401.76/x
  3. Step 3: Cross multiply
    183,970.72x = 253,872.40 × 103,401.76
  4. Step 4: Simplify right side
    183,970.72x = 26,250,852,975.42
  5. Step 5: Solve for x
    x = 26,250,852,975.42/183,970.72
  6. Step 6: Final answer
    x = 142,690.39

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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.