Home / 140,806.08-211,212.36-47,312.64

Finding the Fourth Proportional to 140,806.08, 211,212.36 and 47,312.64

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Solution

The fourth proportional to 140,806.08, 211,212.36 and 47,312.64 is: 70,970.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,806.08 : 211,212.36 = 47,312.64 : x
  2. Step 2: Convert to fraction form
    140,806.08/211,212.36 = 47,312.64/x
  3. Step 3: Cross multiply
    140,806.08x = 211,212.36 × 47,312.64
  4. Step 4: Simplify right side
    140,806.08x = 9,993,014,352.23
  5. Step 5: Solve for x
    x = 9,993,014,352.23/140,806.08
  6. Step 6: Final answer
    x = 70,970.05

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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.