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Finding the Fourth Proportional to 134,318.88, 185,366.34 and 77,719.32

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Solution

The fourth proportional to 134,318.88, 185,366.34 and 77,719.32 is: 107,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,318.88 : 185,366.34 = 77,719.32 : x
  2. Step 2: Convert to fraction form
    134,318.88/185,366.34 = 77,719.32/x
  3. Step 3: Cross multiply
    134,318.88x = 185,366.34 × 77,719.32
  4. Step 4: Simplify right side
    134,318.88x = 14,406,545,895.69
  5. Step 5: Solve for x
    x = 14,406,545,895.69/134,318.88
  6. Step 6: Final answer
    x = 107,256.30

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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.