Home / 189,000.04-260,772.90-120,064.36

Finding the Fourth Proportional to 189,000.04, 260,772.90 and 120,064.36

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Solution

The fourth proportional to 189,000.04, 260,772.90 and 120,064.36 is: 165,658.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,000.04 : 260,772.90 = 120,064.36 : x
  2. Step 2: Convert to fraction form
    189,000.04/260,772.90 = 120,064.36/x
  3. Step 3: Cross multiply
    189,000.04x = 260,772.90 × 120,064.36
  4. Step 4: Simplify right side
    189,000.04x = 31,309,531,343.84
  5. Step 5: Solve for x
    x = 31,309,531,343.84/189,000.04
  6. Step 6: Final answer
    x = 165,658.86

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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.