Home / 137,077.02-189,149.64-75,814.92

Finding the Fourth Proportional to 137,077.02, 189,149.64 and 75,814.92

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Solution

The fourth proportional to 137,077.02, 189,149.64 and 75,814.92 is: 104,615.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,077.02 : 189,149.64 = 75,814.92 : x
  2. Step 2: Convert to fraction form
    137,077.02/189,149.64 = 75,814.92/x
  3. Step 3: Cross multiply
    137,077.02x = 189,149.64 × 75,814.92
  4. Step 4: Simplify right side
    137,077.02x = 14,340,364,824.63
  5. Step 5: Solve for x
    x = 14,340,364,824.63/137,077.02
  6. Step 6: Final answer
    x = 104,615.38

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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.