Home / 145,971.54-219,080.33-57,287.32

Finding the Fourth Proportional to 145,971.54, 219,080.33 and 57,287.32

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Solution

The fourth proportional to 145,971.54, 219,080.33 and 57,287.32 is: 85,979.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,971.54 : 219,080.33 = 57,287.32 : x
  2. Step 2: Convert to fraction form
    145,971.54/219,080.33 = 57,287.32/x
  3. Step 3: Cross multiply
    145,971.54x = 219,080.33 × 57,287.32
  4. Step 4: Simplify right side
    145,971.54x = 12,550,524,970.42
  5. Step 5: Solve for x
    x = 12,550,524,970.42/145,971.54
  6. Step 6: Final answer
    x = 85,979.26

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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.