Home / 145,004.46-200,095.80-80,477.16

Finding the Fourth Proportional to 145,004.46, 200,095.80 and 80,477.16

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Solution

The fourth proportional to 145,004.46, 200,095.80 and 80,477.16 is: 111,052.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,004.46 : 200,095.80 = 80,477.16 : x
  2. Step 2: Convert to fraction form
    145,004.46/200,095.80 = 80,477.16/x
  3. Step 3: Cross multiply
    145,004.46x = 200,095.80 × 80,477.16
  4. Step 4: Simplify right side
    145,004.46x = 16,103,141,711.93
  5. Step 5: Solve for x
    x = 16,103,141,711.93/145,004.46
  6. Step 6: Final answer
    x = 111,052.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.