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Finding the Fourth Proportional to 121,598.76, 182,416.41 and 42,699.09

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Solution

The fourth proportional to 121,598.76, 182,416.41 and 42,699.09 is: 64,055.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,598.76 : 182,416.41 = 42,699.09 : x
  2. Step 2: Convert to fraction form
    121,598.76/182,416.41 = 42,699.09/x
  3. Step 3: Cross multiply
    121,598.76x = 182,416.41 × 42,699.09
  4. Step 4: Simplify right side
    121,598.76x = 7,789,014,708.07
  5. Step 5: Solve for x
    x = 7,789,014,708.07/121,598.76
  6. Step 6: Final answer
    x = 64,055.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.