Home / 89,467.20-134,038.80-70,869.60

Finding the Fourth Proportional to 89,467.20, 134,038.80 and 70,869.60

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Solution

The fourth proportional to 89,467.20, 134,038.80 and 70,869.60 is: 106,176.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,467.20 : 134,038.80 = 70,869.60 : x
  2. Step 2: Convert to fraction form
    89,467.20/134,038.80 = 70,869.60/x
  3. Step 3: Cross multiply
    89,467.20x = 134,038.80 × 70,869.60
  4. Step 4: Simplify right side
    89,467.20x = 9,499,276,140.48
  5. Step 5: Solve for x
    x = 9,499,276,140.48/89,467.20
  6. Step 6: Final answer
    x = 106,176.08

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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.