Home / 134,102.34-185,098.47-76,773.78

Finding the Fourth Proportional to 134,102.34, 185,098.47 and 76,773.78

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Solution

The fourth proportional to 134,102.34, 185,098.47 and 76,773.78 is: 105,969.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,102.34 : 185,098.47 = 76,773.78 : x
  2. Step 2: Convert to fraction form
    134,102.34/185,098.47 = 76,773.78/x
  3. Step 3: Cross multiply
    134,102.34x = 185,098.47 × 76,773.78
  4. Step 4: Simplify right side
    134,102.34x = 14,210,709,214.12
  5. Step 5: Solve for x
    x = 14,210,709,214.12/134,102.34
  6. Step 6: Final answer
    x = 105,969.14

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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.