Home / 128,184.77-192,280.26-39,439.01

Finding the Fourth Proportional to 128,184.77, 192,280.26 and 39,439.01

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Solution

The fourth proportional to 128,184.77, 192,280.26 and 39,439.01 is: 59,159.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,184.77 : 192,280.26 = 39,439.01 : x
  2. Step 2: Convert to fraction form
    128,184.77/192,280.26 = 39,439.01/x
  3. Step 3: Cross multiply
    128,184.77x = 192,280.26 × 39,439.01
  4. Step 4: Simplify right side
    128,184.77x = 7,583,343,096.94
  5. Step 5: Solve for x
    x = 7,583,343,096.94/128,184.77
  6. Step 6: Final answer
    x = 59,159.47

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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.