Home / 122,889.46-184,038.90-70,139.02

Finding the Fourth Proportional to 122,889.46, 184,038.90 and 70,139.02

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Solution

The fourth proportional to 122,889.46, 184,038.90 and 70,139.02 is: 105,039.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,889.46 : 184,038.90 = 70,139.02 : x
  2. Step 2: Convert to fraction form
    122,889.46/184,038.90 = 70,139.02/x
  3. Step 3: Cross multiply
    122,889.46x = 184,038.90 × 70,139.02
  4. Step 4: Simplify right side
    122,889.46x = 12,908,308,087.88
  5. Step 5: Solve for x
    x = 12,908,308,087.88/122,889.46
  6. Step 6: Final answer
    x = 105,039.99

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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.