Home / 140,643.12-210,913.92-47,127.36

Finding the Fourth Proportional to 140,643.12, 210,913.92 and 47,127.36

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Solution

The fourth proportional to 140,643.12, 210,913.92 and 47,127.36 is: 70,674.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,643.12 : 210,913.92 = 47,127.36 : x
  2. Step 2: Convert to fraction form
    140,643.12/210,913.92 = 47,127.36/x
  3. Step 3: Cross multiply
    140,643.12x = 210,913.92 × 47,127.36
  4. Step 4: Simplify right side
    140,643.12x = 9,939,816,236.85
  5. Step 5: Solve for x
    x = 9,939,816,236.85/140,643.12
  6. Step 6: Final answer
    x = 70,674.03

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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.