Home / 121,152.72-181,735.20-46,279.32

Finding the Fourth Proportional to 121,152.72, 181,735.20 and 46,279.32

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Solution

The fourth proportional to 121,152.72, 181,735.20 and 46,279.32 is: 69,421.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,152.72 : 181,735.20 = 46,279.32 : x
  2. Step 2: Convert to fraction form
    121,152.72/181,735.20 = 46,279.32/x
  3. Step 3: Cross multiply
    121,152.72x = 181,735.20 × 46,279.32
  4. Step 4: Simplify right side
    121,152.72x = 8,410,581,476.06
  5. Step 5: Solve for x
    x = 8,410,581,476.06/121,152.72
  6. Step 6: Final answer
    x = 69,421.32

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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.