Home / 131,516.96-181,497.58-74,931.98

Finding the Fourth Proportional to 131,516.96, 181,497.58 and 74,931.98

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Solution

The fourth proportional to 131,516.96, 181,497.58 and 74,931.98 is: 103,408.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,516.96 : 181,497.58 = 74,931.98 : x
  2. Step 2: Convert to fraction form
    131,516.96/181,497.58 = 74,931.98/x
  3. Step 3: Cross multiply
    131,516.96x = 181,497.58 × 74,931.98
  4. Step 4: Simplify right side
    131,516.96x = 13,599,971,939.79
  5. Step 5: Solve for x
    x = 13,599,971,939.79/131,516.96
  6. Step 6: Final answer
    x = 103,408.51

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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.