Home / 98,631.10-147,968.51-28,505.08

Finding the Fourth Proportional to 98,631.10, 147,968.51 and 28,505.08

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Solution

The fourth proportional to 98,631.10, 147,968.51 and 28,505.08 is: 42,763.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,631.10 : 147,968.51 = 28,505.08 : x
  2. Step 2: Convert to fraction form
    98,631.10/147,968.51 = 28,505.08/x
  3. Step 3: Cross multiply
    98,631.10x = 147,968.51 × 28,505.08
  4. Step 4: Simplify right side
    98,631.10x = 4,217,853,475.19
  5. Step 5: Solve for x
    x = 4,217,853,475.19/98,631.10
  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.