Home / 103,042.02-142,205.88-64,834.32

Finding the Fourth Proportional to 103,042.02, 142,205.88 and 64,834.32

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Solution

The fourth proportional to 103,042.02, 142,205.88 and 64,834.32 is: 89,476.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,042.02 : 142,205.88 = 64,834.32 : x
  2. Step 2: Convert to fraction form
    103,042.02/142,205.88 = 64,834.32/x
  3. Step 3: Cross multiply
    103,042.02x = 142,205.88 × 64,834.32
  4. Step 4: Simplify right side
    103,042.02x = 9,219,821,491.56
  5. Step 5: Solve for x
    x = 9,219,821,491.56/103,042.02
  6. Step 6: Final answer
    x = 89,476.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.