Home / 122,325.85-183,488.78-103,663.45

Finding the Fourth Proportional to 122,325.85, 183,488.78 and 103,663.45

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Solution

The fourth proportional to 122,325.85, 183,488.78 and 103,663.45 is: 155,495.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,325.85 : 183,488.78 = 103,663.45 : x
  2. Step 2: Convert to fraction form
    122,325.85/183,488.78 = 103,663.45/x
  3. Step 3: Cross multiply
    122,325.85x = 183,488.78 × 103,663.45
  4. Step 4: Simplify right side
    122,325.85x = 19,021,079,971.09
  5. Step 5: Solve for x
    x = 19,021,079,971.09/122,325.85
  6. Step 6: Final answer
    x = 155,495.18

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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.