Home / 129,658.23-194,501.94-40,885.47

Finding the Fourth Proportional to 129,658.23, 194,501.94 and 40,885.47

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Solution

The fourth proportional to 129,658.23, 194,501.94 and 40,885.47 is: 61,332.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,658.23 : 194,501.94 = 40,885.47 : x
  2. Step 2: Convert to fraction form
    129,658.23/194,501.94 = 40,885.47/x
  3. Step 3: Cross multiply
    129,658.23x = 194,501.94 × 40,885.47
  4. Step 4: Simplify right side
    129,658.23x = 7,952,303,232.81
  5. Step 5: Solve for x
    x = 7,952,303,232.81/129,658.23
  6. Step 6: Final answer
    x = 61,332.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.