Home / 139,237.80-192,143.01-75,574.23

Finding the Fourth Proportional to 139,237.80, 192,143.01 and 75,574.23

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Solution

The fourth proportional to 139,237.80, 192,143.01 and 75,574.23 is: 104,289.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,237.80 : 192,143.01 = 75,574.23 : x
  2. Step 2: Convert to fraction form
    139,237.80/192,143.01 = 75,574.23/x
  3. Step 3: Cross multiply
    139,237.80x = 192,143.01 × 75,574.23
  4. Step 4: Simplify right side
    139,237.80x = 14,521,060,030.63
  5. Step 5: Solve for x
    x = 14,521,060,030.63/139,237.80
  6. Step 6: Final answer
    x = 104,289.64

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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.