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Finding the Fourth Proportional to 144,174.15, 216,307.51 and 69,299.74

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Solution

The fourth proportional to 144,174.15, 216,307.51 and 69,299.74 is: 103,971.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,174.15 : 216,307.51 = 69,299.74 : x
  2. Step 2: Convert to fraction form
    144,174.15/216,307.51 = 69,299.74/x
  3. Step 3: Cross multiply
    144,174.15x = 216,307.51 × 69,299.74
  4. Step 4: Simplify right side
    144,174.15x = 14,990,054,203.05
  5. Step 5: Solve for x
    x = 14,990,054,203.05/144,174.15
  6. Step 6: Final answer
    x = 103,971.86

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1.5x scale

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.