Home / 100,900.08-151,349.70-30,779.16

Finding the Fourth Proportional to 100,900.08, 151,349.70 and 30,779.16

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Solution

The fourth proportional to 100,900.08, 151,349.70 and 30,779.16 is: 46,168.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,900.08 : 151,349.70 = 30,779.16 : x
  2. Step 2: Convert to fraction form
    100,900.08/151,349.70 = 30,779.16/x
  3. Step 3: Cross multiply
    100,900.08x = 151,349.70 × 30,779.16
  4. Step 4: Simplify right side
    100,900.08x = 4,658,416,632.25
  5. Step 5: Solve for x
    x = 4,658,416,632.25/100,900.08
  6. Step 6: Final answer
    x = 46,168.61

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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.