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Finding the Fourth Proportional to 103,615.00, 142,944.55 and 59,389.27

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Solution

The fourth proportional to 103,615.00, 142,944.55 and 59,389.27 is: 81,931.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,615.00 : 142,944.55 = 59,389.27 : x
  2. Step 2: Convert to fraction form
    103,615.00/142,944.55 = 59,389.27/x
  3. Step 3: Cross multiply
    103,615.00x = 142,944.55 × 59,389.27
  4. Step 4: Simplify right side
    103,615.00x = 8,489,371,969.14
  5. Step 5: Solve for x
    x = 8,489,371,969.14/103,615.00
  6. Step 6: Final answer
    x = 81,931.88

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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.