Home / 89,688.42-122,873.74-86,325.30

Finding the Fourth Proportional to 89,688.42, 122,873.74 and 86,325.30

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Solution

The fourth proportional to 89,688.42, 122,873.74 and 86,325.30 is: 118,266.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,688.42 : 122,873.74 = 86,325.30 : x
  2. Step 2: Convert to fraction form
    89,688.42/122,873.74 = 86,325.30/x
  3. Step 3: Cross multiply
    89,688.42x = 122,873.74 × 86,325.30
  4. Step 4: Simplify right side
    89,688.42x = 10,607,112,251.81
  5. Step 5: Solve for x
    x = 10,607,112,251.81/89,688.42
  6. Step 6: Final answer
    x = 118,266.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.