Home / 89,619.40-134,429.10-68,624.20

Finding the Fourth Proportional to 89,619.40, 134,429.10 and 68,624.20

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Solution

The fourth proportional to 89,619.40, 134,429.10 and 68,624.20 is: 102,936.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,619.40 : 134,429.10 = 68,624.20 : x
  2. Step 2: Convert to fraction form
    89,619.40/134,429.10 = 68,624.20/x
  3. Step 3: Cross multiply
    89,619.40x = 134,429.10 × 68,624.20
  4. Step 4: Simplify right side
    89,619.40x = 9,225,089,444.22
  5. Step 5: Solve for x
    x = 9,225,089,444.22/89,619.40
  6. Step 6: Final answer
    x = 102,936.30

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1.5x scale

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.