Home / 99,806.50-149,711.37-28,730.08

Finding the Fourth Proportional to 99,806.50, 149,711.37 and 28,730.08

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Solution

The fourth proportional to 99,806.50, 149,711.37 and 28,730.08 is: 43,095.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,806.50 : 149,711.37 = 28,730.08 : x
  2. Step 2: Convert to fraction form
    99,806.50/149,711.37 = 28,730.08/x
  3. Step 3: Cross multiply
    99,806.50x = 149,711.37 × 28,730.08
  4. Step 4: Simplify right side
    99,806.50x = 4,301,219,637.01
  5. Step 5: Solve for x
    x = 4,301,219,637.01/99,806.50
  6. Step 6: Final answer
    x = 43,095.59

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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.