Home / 122,389.36-183,175.72-69,784.88

Finding the Fourth Proportional to 122,389.36, 183,175.72 and 69,784.88

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Solution

The fourth proportional to 122,389.36, 183,175.72 and 69,784.88 is: 104,444.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,389.36 : 183,175.72 = 69,784.88 : x
  2. Step 2: Convert to fraction form
    122,389.36/183,175.72 = 69,784.88/x
  3. Step 3: Cross multiply
    122,389.36x = 183,175.72 × 69,784.88
  4. Step 4: Simplify right side
    122,389.36x = 12,782,895,639.11
  5. Step 5: Solve for x
    x = 12,782,895,639.11/122,389.36
  6. Step 6: Final answer
    x = 104,444.50

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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.