Home / 178,478.82-267,776.55-139,171.14

Finding the Fourth Proportional to 178,478.82, 267,776.55 and 139,171.14

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Solution

The fourth proportional to 178,478.82, 267,776.55 and 139,171.14 is: 208,802.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,478.82 : 267,776.55 = 139,171.14 : x
  2. Step 2: Convert to fraction form
    178,478.82/267,776.55 = 139,171.14/x
  3. Step 3: Cross multiply
    178,478.82x = 267,776.55 × 139,171.14
  4. Step 4: Simplify right side
    178,478.82x = 37,266,767,728.77
  5. Step 5: Solve for x
    x = 37,266,767,728.77/178,478.82
  6. Step 6: Final answer
    x = 208,802.19

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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.