Home / 140,420.34-210,683.12-72,910.26

Finding the Fourth Proportional to 140,420.34, 210,683.12 and 72,910.26

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Solution

The fourth proportional to 140,420.34, 210,683.12 and 72,910.26 is: 109,392.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,420.34 : 210,683.12 = 72,910.26 : x
  2. Step 2: Convert to fraction form
    140,420.34/210,683.12 = 72,910.26/x
  3. Step 3: Cross multiply
    140,420.34x = 210,683.12 × 72,910.26
  4. Step 4: Simplify right side
    140,420.34x = 15,360,960,692.26
  5. Step 5: Solve for x
    x = 15,360,960,692.26/140,420.34
  6. Step 6: Final answer
    x = 109,392.70

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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.