Home / 180,280.78-248,765.90-99,697.36

Finding the Fourth Proportional to 180,280.78, 248,765.90 and 99,697.36

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Solution

The fourth proportional to 180,280.78, 248,765.90 and 99,697.36 is: 137,570.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,280.78 : 248,765.90 = 99,697.36 : x
  2. Step 2: Convert to fraction form
    180,280.78/248,765.90 = 99,697.36/x
  3. Step 3: Cross multiply
    180,280.78x = 248,765.90 × 99,697.36
  4. Step 4: Simplify right side
    180,280.78x = 24,801,303,488.02
  5. Step 5: Solve for x
    x = 24,801,303,488.02/180,280.78
  6. Step 6: Final answer
    x = 137,570.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.