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Finding the Fourth Proportional to 139,460.54, 192,457.49 and 75,798.32

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Solution

The fourth proportional to 139,460.54, 192,457.49 and 75,798.32 is: 104,602.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,460.54 : 192,457.49 = 75,798.32 : x
  2. Step 2: Convert to fraction form
    139,460.54/192,457.49 = 75,798.32/x
  3. Step 3: Cross multiply
    139,460.54x = 192,457.49 × 75,798.32
  4. Step 4: Simplify right side
    139,460.54x = 14,587,953,072.14
  5. Step 5: Solve for x
    x = 14,587,953,072.14/139,460.54
  6. Step 6: Final answer
    x = 104,602.73

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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.