Home / 153,268.94-211,514.04-85,288.79

Finding the Fourth Proportional to 153,268.94, 211,514.04 and 85,288.79

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Solution

The fourth proportional to 153,268.94, 211,514.04 and 85,288.79 is: 117,700.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,268.94 : 211,514.04 = 85,288.79 : x
  2. Step 2: Convert to fraction form
    153,268.94/211,514.04 = 85,288.79/x
  3. Step 3: Cross multiply
    153,268.94x = 211,514.04 × 85,288.79
  4. Step 4: Simplify right side
    153,268.94x = 18,039,775,482.04
  5. Step 5: Solve for x
    x = 18,039,775,482.04/153,268.94
  6. Step 6: Final answer
    x = 117,700.14

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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.