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Finding the Fourth Proportional to 139,416.99, 192,395.04 and 75,754.77

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Solution

The fourth proportional to 139,416.99, 192,395.04 and 75,754.77 is: 104,541.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,416.99 : 192,395.04 = 75,754.77 : x
  2. Step 2: Convert to fraction form
    139,416.99/192,395.04 = 75,754.77/x
  3. Step 3: Cross multiply
    139,416.99x = 192,395.04 × 75,754.77
  4. Step 4: Simplify right side
    139,416.99x = 14,574,842,004.34
  5. Step 5: Solve for x
    x = 14,574,842,004.34/139,416.99
  6. Step 6: Final answer
    x = 104,541.36

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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.