Home / 137,051.08-189,134.64-76,624.27

Finding the Fourth Proportional to 137,051.08, 189,134.64 and 76,624.27

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Solution

The fourth proportional to 137,051.08, 189,134.64 and 76,624.27 is: 105,743.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,051.08 : 189,134.64 = 76,624.27 : x
  2. Step 2: Convert to fraction form
    137,051.08/189,134.64 = 76,624.27/x
  3. Step 3: Cross multiply
    137,051.08x = 189,134.64 × 76,624.27
  4. Step 4: Simplify right side
    137,051.08x = 14,492,303,721.71
  5. Step 5: Solve for x
    x = 14,492,303,721.71/137,051.08
  6. Step 6: Final answer
    x = 105,743.81

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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.