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Finding the Fourth Proportional to 103,164.78, 141,440.24 and 101,298.54

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Solution

The fourth proportional to 103,164.78, 141,440.24 and 101,298.54 is: 138,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,164.78 : 141,440.24 = 101,298.54 : x
  2. Step 2: Convert to fraction form
    103,164.78/141,440.24 = 101,298.54/x
  3. Step 3: Cross multiply
    103,164.78x = 141,440.24 × 101,298.54
  4. Step 4: Simplify right side
    103,164.78x = 14,327,689,302.76
  5. Step 5: Solve for x
    x = 14,327,689,302.76/103,164.78
  6. Step 6: Final answer
    x = 138,881.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.