Home / 162,071.14-223,719.47-121,900.91

Finding the Fourth Proportional to 162,071.14, 223,719.47 and 121,900.91

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Solution

The fourth proportional to 162,071.14, 223,719.47 and 121,900.91 is: 168,269.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,071.14 : 223,719.47 = 121,900.91 : x
  2. Step 2: Convert to fraction form
    162,071.14/223,719.47 = 121,900.91/x
  3. Step 3: Cross multiply
    162,071.14x = 223,719.47 × 121,900.91
  4. Step 4: Simplify right side
    162,071.14x = 27,271,607,231.38
  5. Step 5: Solve for x
    x = 27,271,607,231.38/162,071.14
  6. Step 6: Final answer
    x = 168,269.36

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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.