Home / 89,719.90-134,428.65-70,927.90

Finding the Fourth Proportional to 89,719.90, 134,428.65 and 70,927.90

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Solution

The fourth proportional to 89,719.90, 134,428.65 and 70,927.90 is: 106,272.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,719.90 : 134,428.65 = 70,927.90 : x
  2. Step 2: Convert to fraction form
    89,719.90/134,428.65 = 70,927.90/x
  3. Step 3: Cross multiply
    89,719.90x = 134,428.65 × 70,927.90
  4. Step 4: Simplify right side
    89,719.90x = 9,534,741,844.34
  5. Step 5: Solve for x
    x = 9,534,741,844.34/89,719.90
  6. Step 6: Final answer
    x = 106,272.32

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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.