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Finding the Fourth Proportional to 112,077, 154,666.26 and 61,777.08

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Solution

The fourth proportional to 112,077, 154,666.26 and 61,777.08 is: 85,252.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,077 : 154,666.26 = 61,777.08 : x
  2. Step 2: Convert to fraction form
    112,077/154,666.26 = 61,777.08/x
  3. Step 3: Cross multiply
    112,077x = 154,666.26 × 61,777.08
  4. Step 4: Simplify right side
    112,077x = 9,554,829,917.32
  5. Step 5: Solve for x
    x = 9,554,829,917.32/112,077
  6. Step 6: Final answer
    x = 85,252.37

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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.