Home / 210,719.64-290,794.66-118,840.13

Finding the Fourth Proportional to 210,719.64, 290,794.66 and 118,840.13

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Solution

The fourth proportional to 210,719.64, 290,794.66 and 118,840.13 is: 164,000.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,719.64 : 290,794.66 = 118,840.13 : x
  2. Step 2: Convert to fraction form
    210,719.64/290,794.66 = 118,840.13/x
  3. Step 3: Cross multiply
    210,719.64x = 290,794.66 × 118,840.13
  4. Step 4: Simplify right side
    210,719.64x = 34,558,074,537.11
  5. Step 5: Solve for x
    x = 34,558,074,537.11/210,719.64
  6. Step 6: Final answer
    x = 164,000.25

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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.