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Finding the Fourth Proportional to 180,155.16, 248,611.41 and 99,580.90

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Solution

The fourth proportional to 180,155.16, 248,611.41 and 99,580.90 is: 137,420.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,155.16 : 248,611.41 = 99,580.90 : x
  2. Step 2: Convert to fraction form
    180,155.16/248,611.41 = 99,580.90/x
  3. Step 3: Cross multiply
    180,155.16x = 248,611.41 × 99,580.90
  4. Step 4: Simplify right side
    180,155.16x = 24,756,947,958.07
  5. Step 5: Solve for x
    x = 24,756,947,958.07/180,155.16
  6. Step 6: Final answer
    x = 137,420.14

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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.