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Finding the Fourth Proportional to 134,651.81, 185,681.40 and 88,723.50

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Solution

The fourth proportional to 134,651.81, 185,681.40 and 88,723.50 is: 122,347.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,651.81 : 185,681.40 = 88,723.50 : x
  2. Step 2: Convert to fraction form
    134,651.81/185,681.40 = 88,723.50/x
  3. Step 3: Cross multiply
    134,651.81x = 185,681.40 × 88,723.50
  4. Step 4: Simplify right side
    134,651.81x = 16,474,302,663.88
  5. Step 5: Solve for x
    x = 16,474,302,663.88/134,651.81
  6. Step 6: Final answer
    x = 122,347.43

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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.