Home / 98,631.09-147,968.51-28,505.07

Finding the Fourth Proportional to 98,631.09, 147,968.51 and 28,505.07

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Solution

The fourth proportional to 98,631.09, 147,968.51 and 28,505.07 is: 42,763.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,631.09 : 147,968.51 = 28,505.07 : x
  2. Step 2: Convert to fraction form
    98,631.09/147,968.51 = 28,505.07/x
  3. Step 3: Cross multiply
    98,631.09x = 147,968.51 × 28,505.07
  4. Step 4: Simplify right side
    98,631.09x = 4,217,852,735.35
  5. Step 5: Solve for x
    x = 4,217,852,735.35/98,631.09
  6. Step 6: Final answer
    x = 42,763.93

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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.