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Finding the Fourth Proportional to 119,870.84, 179,750.64 and 69,965.30

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Solution

The fourth proportional to 119,870.84, 179,750.64 and 69,965.30 is: 104,915.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,870.84 : 179,750.64 = 69,965.30 : x
  2. Step 2: Convert to fraction form
    119,870.84/179,750.64 = 69,965.30/x
  3. Step 3: Cross multiply
    119,870.84x = 179,750.64 × 69,965.30
  4. Step 4: Simplify right side
    119,870.84x = 12,576,307,452.79
  5. Step 5: Solve for x
    x = 12,576,307,452.79/119,870.84
  6. Step 6: Final answer
    x = 104,915.49

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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.