Home / 102,541.50-153,838.26-28,669.50

Finding the Fourth Proportional to 102,541.50, 153,838.26 and 28,669.50

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Solution

The fourth proportional to 102,541.50, 153,838.26 and 28,669.50 is: 43,011.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,541.50 : 153,838.26 = 28,669.50 : x
  2. Step 2: Convert to fraction form
    102,541.50/153,838.26 = 28,669.50/x
  3. Step 3: Cross multiply
    102,541.50x = 153,838.26 × 28,669.50
  4. Step 4: Simplify right side
    102,541.50x = 4,410,465,995.07
  5. Step 5: Solve for x
    x = 4,410,465,995.07/102,541.50
  6. Step 6: Final answer
    x = 43,011.52

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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.