Home / 119,129.61-178,637.79-69,224.10

Finding the Fourth Proportional to 119,129.61, 178,637.79 and 69,224.10

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Solution

The fourth proportional to 119,129.61, 178,637.79 and 69,224.10 is: 103,803.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,129.61 : 178,637.79 = 69,224.10 : x
  2. Step 2: Convert to fraction form
    119,129.61/178,637.79 = 69,224.10/x
  3. Step 3: Cross multiply
    119,129.61x = 178,637.79 × 69,224.10
  4. Step 4: Simplify right side
    119,129.61x = 12,366,040,238.74
  5. Step 5: Solve for x
    x = 12,366,040,238.74/119,129.61
  6. Step 6: Final answer
    x = 103,803.25

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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.