Home / 210,918.72-291,068.80-115,425.28

Finding the Fourth Proportional to 210,918.72, 291,068.80 and 115,425.28

Calculator

Solution

The fourth proportional to 210,918.72, 291,068.80 and 115,425.28 is: 159,287.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,918.72 : 291,068.80 = 115,425.28 : x
  2. Step 2: Convert to fraction form
    210,918.72/291,068.80 = 115,425.28/x
  3. Step 3: Cross multiply
    210,918.72x = 291,068.80 × 115,425.28
  4. Step 4: Simplify right side
    210,918.72x = 33,596,697,739.26
  5. Step 5: Solve for x
    x = 33,596,697,739.26/210,918.72
  6. Step 6: Final answer
    x = 159,287.42

Related Problems

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.