Home / 137,103.64-189,201.69-76,673.59

Finding the Fourth Proportional to 137,103.64, 189,201.69 and 76,673.59

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Solution

The fourth proportional to 137,103.64, 189,201.69 and 76,673.59 is: 105,808.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,103.64 : 189,201.69 = 76,673.59 : x
  2. Step 2: Convert to fraction form
    137,103.64/189,201.69 = 76,673.59/x
  3. Step 3: Cross multiply
    137,103.64x = 189,201.69 × 76,673.59
  4. Step 4: Simplify right side
    137,103.64x = 14,506,772,333.36
  5. Step 5: Solve for x
    x = 14,506,772,333.36/137,103.64
  6. Step 6: Final answer
    x = 105,808.81

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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.