Home / 120,485.28-180,544.86-95,420.64

Finding the Fourth Proportional to 120,485.28, 180,544.86 and 95,420.64

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Solution

The fourth proportional to 120,485.28, 180,544.86 and 95,420.64 is: 142,985.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,485.28 : 180,544.86 = 95,420.64 : x
  2. Step 2: Convert to fraction form
    120,485.28/180,544.86 = 95,420.64/x
  3. Step 3: Cross multiply
    120,485.28x = 180,544.86 × 95,420.64
  4. Step 4: Simplify right side
    120,485.28x = 17,227,706,089.91
  5. Step 5: Solve for x
    x = 17,227,706,089.91/120,485.28
  6. Step 6: Final answer
    x = 142,985.98

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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.