Home / 122,583.17-183,886.70-47,709.40

Finding the Fourth Proportional to 122,583.17, 183,886.70 and 47,709.40

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Solution

The fourth proportional to 122,583.17, 183,886.70 and 47,709.40 is: 71,568.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,583.17 : 183,886.70 = 47,709.40 : x
  2. Step 2: Convert to fraction form
    122,583.17/183,886.70 = 47,709.40/x
  3. Step 3: Cross multiply
    122,583.17x = 183,886.70 × 47,709.40
  4. Step 4: Simplify right side
    122,583.17x = 8,773,124,124.98
  5. Step 5: Solve for x
    x = 8,773,124,124.98/122,583.17
  6. Step 6: Final answer
    x = 71,568.75

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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.