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Finding the Fourth Proportional to 183,970.72, 253,879.20 and 103,401.52

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Solution

The fourth proportional to 183,970.72, 253,879.20 and 103,401.52 is: 142,693.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,970.72 : 253,879.20 = 103,401.52 : x
  2. Step 2: Convert to fraction form
    183,970.72/253,879.20 = 103,401.52/x
  3. Step 3: Cross multiply
    183,970.72x = 253,879.20 × 103,401.52
  4. Step 4: Simplify right side
    183,970.72x = 26,251,495,176.38
  5. Step 5: Solve for x
    x = 26,251,495,176.38/183,970.72
  6. Step 6: Final answer
    x = 142,693.88

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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.