Home / 98,820.51-148,124.45-42,687.03

Finding the Fourth Proportional to 98,820.51, 148,124.45 and 42,687.03

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Solution

The fourth proportional to 98,820.51, 148,124.45 and 42,687.03 is: 63,984.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,820.51 : 148,124.45 = 42,687.03 : x
  2. Step 2: Convert to fraction form
    98,820.51/148,124.45 = 42,687.03/x
  3. Step 3: Cross multiply
    98,820.51x = 148,124.45 × 42,687.03
  4. Step 4: Simplify right side
    98,820.51x = 6,322,992,627.45
  5. Step 5: Solve for x
    x = 6,322,992,627.45/98,820.51
  6. Step 6: Final answer
    x = 63,984.62

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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.