Home / 82,837.60-124,256.40-80,533.60

Finding the Fourth Proportional to 82,837.60, 124,256.40 and 80,533.60

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Solution

The fourth proportional to 82,837.60, 124,256.40 and 80,533.60 is: 120,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,837.60 : 124,256.40 = 80,533.60 : x
  2. Step 2: Convert to fraction form
    82,837.60/124,256.40 = 80,533.60/x
  3. Step 3: Cross multiply
    82,837.60x = 124,256.40 × 80,533.60
  4. Step 4: Simplify right side
    82,837.60x = 10,006,815,215.04
  5. Step 5: Solve for x
    x = 10,006,815,215.04/82,837.60
  6. Step 6: Final answer
    x = 120,800.40

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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.