Home / 137,564.16-189,848.27-76,330.38

Finding the Fourth Proportional to 137,564.16, 189,848.27 and 76,330.38

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Solution

The fourth proportional to 137,564.16, 189,848.27 and 76,330.38 is: 105,341.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,564.16 : 189,848.27 = 76,330.38 : x
  2. Step 2: Convert to fraction form
    137,564.16/189,848.27 = 76,330.38/x
  3. Step 3: Cross multiply
    137,564.16x = 189,848.27 × 76,330.38
  4. Step 4: Simplify right side
    137,564.16x = 14,491,191,494.20
  5. Step 5: Solve for x
    x = 14,491,191,494.20/137,564.16
  6. Step 6: Final answer
    x = 105,341.33

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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.