Home / 140,043.27-210,158.31-72,637.44

Finding the Fourth Proportional to 140,043.27, 210,158.31 and 72,637.44

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Solution

The fourth proportional to 140,043.27, 210,158.31 and 72,637.44 is: 109,004.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,043.27 : 210,158.31 = 72,637.44 : x
  2. Step 2: Convert to fraction form
    140,043.27/210,158.31 = 72,637.44/x
  3. Step 3: Cross multiply
    140,043.27x = 210,158.31 × 72,637.44
  4. Step 4: Simplify right side
    140,043.27x = 15,265,361,117.42
  5. Step 5: Solve for x
    x = 15,265,361,117.42/140,043.27
  6. Step 6: Final answer
    x = 109,004.60

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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.