Home / 155,318.12-214,416.60-101,685.32

Finding the Fourth Proportional to 155,318.12, 214,416.60 and 101,685.32

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Solution

The fourth proportional to 155,318.12, 214,416.60 and 101,685.32 is: 140,376.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,318.12 : 214,416.60 = 101,685.32 : x
  2. Step 2: Convert to fraction form
    155,318.12/214,416.60 = 101,685.32/x
  3. Step 3: Cross multiply
    155,318.12x = 214,416.60 × 101,685.32
  4. Step 4: Simplify right side
    155,318.12x = 21,803,020,584.31
  5. Step 5: Solve for x
    x = 21,803,020,584.31/155,318.12
  6. Step 6: Final answer
    x = 140,376.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.