Home / 122,398.09-183,240.50-90,947.57

Finding the Fourth Proportional to 122,398.09, 183,240.50 and 90,947.57

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Solution

The fourth proportional to 122,398.09, 183,240.50 and 90,947.57 is: 136,156.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,398.09 : 183,240.50 = 90,947.57 : x
  2. Step 2: Convert to fraction form
    122,398.09/183,240.50 = 90,947.57/x
  3. Step 3: Cross multiply
    122,398.09x = 183,240.50 × 90,947.57
  4. Step 4: Simplify right side
    122,398.09x = 16,665,276,829.64
  5. Step 5: Solve for x
    x = 16,665,276,829.64/122,398.09
  6. Step 6: Final answer
    x = 136,156.35

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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.