Home / 211,061.04-316,089-122,127.12

Finding the Fourth Proportional to 211,061.04, 316,089 and 122,127.12

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Solution

The fourth proportional to 211,061.04, 316,089 and 122,127.12 is: 182,899.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,061.04 : 316,089 = 122,127.12 : x
  2. Step 2: Convert to fraction form
    211,061.04/316,089 = 122,127.12/x
  3. Step 3: Cross multiply
    211,061.04x = 316,089 × 122,127.12
  4. Step 4: Simplify right side
    211,061.04x = 38,603,039,233.68
  5. Step 5: Solve for x
    x = 38,603,039,233.68/211,061.04
  6. Step 6: Final answer
    x = 182,899.88

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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.