Home / 137,005.29-189,063.45-76,576.32

Finding the Fourth Proportional to 137,005.29, 189,063.45 and 76,576.32

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Solution

The fourth proportional to 137,005.29, 189,063.45 and 76,576.32 is: 105,673.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,005.29 : 189,063.45 = 76,576.32 : x
  2. Step 2: Convert to fraction form
    137,005.29/189,063.45 = 76,576.32/x
  3. Step 3: Cross multiply
    137,005.29x = 189,063.45 × 76,576.32
  4. Step 4: Simplify right side
    137,005.29x = 14,477,783,247.50
  5. Step 5: Solve for x
    x = 14,477,783,247.50/137,005.29
  6. Step 6: Final answer
    x = 105,673.17

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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.