Home / 155,438.80-233,158.20-143,191.60

Finding the Fourth Proportional to 155,438.80, 233,158.20 and 143,191.60

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Solution

The fourth proportional to 155,438.80, 233,158.20 and 143,191.60 is: 214,787.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,438.80 : 233,158.20 = 143,191.60 : x
  2. Step 2: Convert to fraction form
    155,438.80/233,158.20 = 143,191.60/x
  3. Step 3: Cross multiply
    155,438.80x = 233,158.20 × 143,191.60
  4. Step 4: Simplify right side
    155,438.80x = 33,386,295,711.12
  5. Step 5: Solve for x
    x = 33,386,295,711.12/155,438.80
  6. Step 6: Final answer
    x = 214,787.40

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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.