Home / 122,133.90-183,200.85-101,138.70

Finding the Fourth Proportional to 122,133.90, 183,200.85 and 101,138.70

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Solution

The fourth proportional to 122,133.90, 183,200.85 and 101,138.70 is: 151,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,133.90 : 183,200.85 = 101,138.70 : x
  2. Step 2: Convert to fraction form
    122,133.90/183,200.85 = 101,138.70/x
  3. Step 3: Cross multiply
    122,133.90x = 183,200.85 × 101,138.70
  4. Step 4: Simplify right side
    122,133.90x = 18,528,695,807.90
  5. Step 5: Solve for x
    x = 18,528,695,807.90/122,133.90
  6. Step 6: Final answer
    x = 151,708.05

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1.5x scale

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.