Home / 143,438.40-215,254.80-93,396.60

Finding the Fourth Proportional to 143,438.40, 215,254.80 and 93,396.60

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Solution

The fourth proportional to 143,438.40, 215,254.80 and 93,396.60 is: 140,158.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,438.40 : 215,254.80 = 93,396.60 : x
  2. Step 2: Convert to fraction form
    143,438.40/215,254.80 = 93,396.60/x
  3. Step 3: Cross multiply
    143,438.40x = 215,254.80 × 93,396.60
  4. Step 4: Simplify right side
    143,438.40x = 20,104,066,453.68
  5. Step 5: Solve for x
    x = 20,104,066,453.68/143,438.40
  6. Step 6: Final answer
    x = 140,158.19

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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.