Home / 98,811.51-148,110.97-42,678.02

Finding the Fourth Proportional to 98,811.51, 148,110.97 and 42,678.02

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Solution

The fourth proportional to 98,811.51, 148,110.97 and 42,678.02 is: 63,971.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,811.51 : 148,110.97 = 42,678.02 : x
  2. Step 2: Convert to fraction form
    98,811.51/148,110.97 = 42,678.02/x
  3. Step 3: Cross multiply
    98,811.51x = 148,110.97 × 42,678.02
  4. Step 4: Simplify right side
    98,811.51x = 6,321,082,939.88
  5. Step 5: Solve for x
    x = 6,321,082,939.88/98,811.51
  6. Step 6: Final answer
    x = 63,971.12

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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.