Home / 211,509.08-291,890.72-116,019.80

Finding the Fourth Proportional to 211,509.08, 291,890.72 and 116,019.80

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Solution

The fourth proportional to 211,509.08, 291,890.72 and 116,019.80 is: 160,111.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,509.08 : 291,890.72 = 116,019.80 : x
  2. Step 2: Convert to fraction form
    211,509.08/291,890.72 = 116,019.80/x
  3. Step 3: Cross multiply
    211,509.08x = 291,890.72 × 116,019.80
  4. Step 4: Simplify right side
    211,509.08x = 33,865,102,956.26
  5. Step 5: Solve for x
    x = 33,865,102,956.26/211,509.08
  6. Step 6: Final answer
    x = 160,111.82

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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.