Home / 155,478.06-214,570.62-87,501.58

Finding the Fourth Proportional to 155,478.06, 214,570.62 and 87,501.58

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Solution

The fourth proportional to 155,478.06, 214,570.62 and 87,501.58 is: 120,758.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,478.06 : 214,570.62 = 87,501.58 : x
  2. Step 2: Convert to fraction form
    155,478.06/214,570.62 = 87,501.58/x
  3. Step 3: Cross multiply
    155,478.06x = 214,570.62 × 87,501.58
  4. Step 4: Simplify right side
    155,478.06x = 18,775,268,271.58
  5. Step 5: Solve for x
    x = 18,775,268,271.58/155,478.06
  6. Step 6: Final answer
    x = 120,758.31

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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.