Home / 145,290.47-216,664.34-143,961.84

Finding the Fourth Proportional to 145,290.47, 216,664.34 and 143,961.84

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Solution

The fourth proportional to 145,290.47, 216,664.34 and 143,961.84 is: 214,683.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,290.47 : 216,664.34 = 143,961.84 : x
  2. Step 2: Convert to fraction form
    145,290.47/216,664.34 = 143,961.84/x
  3. Step 3: Cross multiply
    145,290.47x = 216,664.34 × 143,961.84
  4. Step 4: Simplify right side
    145,290.47x = 31,191,396,328.98
  5. Step 5: Solve for x
    x = 31,191,396,328.98/145,290.47
  6. Step 6: Final answer
    x = 214,683.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.