Home / 131,518.08-181,495.74-71,088.54

Finding the Fourth Proportional to 131,518.08, 181,495.74 and 71,088.54

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Solution

The fourth proportional to 131,518.08, 181,495.74 and 71,088.54 is: 98,102.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,518.08 : 181,495.74 = 71,088.54 : x
  2. Step 2: Convert to fraction form
    131,518.08/181,495.74 = 71,088.54/x
  3. Step 3: Cross multiply
    131,518.08x = 181,495.74 × 71,088.54
  4. Step 4: Simplify right side
    131,518.08x = 12,902,267,172.82
  5. Step 5: Solve for x
    x = 12,902,267,172.82/131,518.08
  6. Step 6: Final answer
    x = 98,102.61

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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.