Home / 122,386.18-183,557.43-77,880.82

Finding the Fourth Proportional to 122,386.18, 183,557.43 and 77,880.82

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Solution

The fourth proportional to 122,386.18, 183,557.43 and 77,880.82 is: 116,807.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,386.18 : 183,557.43 = 77,880.82 : x
  2. Step 2: Convert to fraction form
    122,386.18/183,557.43 = 77,880.82/x
  3. Step 3: Cross multiply
    122,386.18x = 183,557.43 × 77,880.82
  4. Step 4: Simplify right side
    122,386.18x = 14,295,603,165.49
  5. Step 5: Solve for x
    x = 14,295,603,165.49/122,386.18
  6. Step 6: Final answer
    x = 116,807.33

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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.