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Finding the Fourth Proportional to 109,457.79, 151,052 and 59,156.79

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Solution

The fourth proportional to 109,457.79, 151,052 and 59,156.79 is: 81,636.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,457.79 : 151,052 = 59,156.79 : x
  2. Step 2: Convert to fraction form
    109,457.79/151,052 = 59,156.79/x
  3. Step 3: Cross multiply
    109,457.79x = 151,052 × 59,156.79
  4. Step 4: Simplify right side
    109,457.79x = 8,935,751,443.08
  5. Step 5: Solve for x
    x = 8,935,751,443.08/109,457.79
  6. Step 6: Final answer
    x = 81,636.51

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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.