Home / 145,328.16-217,990.08-40,144.80

Finding the Fourth Proportional to 145,328.16, 217,990.08 and 40,144.80

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Solution

The fourth proportional to 145,328.16, 217,990.08 and 40,144.80 is: 60,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,328.16 : 217,990.08 = 40,144.80 : x
  2. Step 2: Convert to fraction form
    145,328.16/217,990.08 = 40,144.80/x
  3. Step 3: Cross multiply
    145,328.16x = 217,990.08 × 40,144.80
  4. Step 4: Simplify right side
    145,328.16x = 8,751,168,163.58
  5. Step 5: Solve for x
    x = 8,751,168,163.58/145,328.16
  6. Step 6: Final answer
    x = 60,216.60

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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.