Home / 119,089.12-178,400.13-69,064.12

Finding the Fourth Proportional to 119,089.12, 178,400.13 and 69,064.12

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Solution

The fourth proportional to 119,089.12, 178,400.13 and 69,064.12 is: 103,460.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,089.12 : 178,400.13 = 69,064.12 : x
  2. Step 2: Convert to fraction form
    119,089.12/178,400.13 = 69,064.12/x
  3. Step 3: Cross multiply
    119,089.12x = 178,400.13 × 69,064.12
  4. Step 4: Simplify right side
    119,089.12x = 12,321,046,946.84
  5. Step 5: Solve for x
    x = 12,321,046,946.84/119,089.12
  6. Step 6: Final answer
    x = 103,460.73

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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.