Home / 104,120.05-143,660.95-63,283.47

Finding the Fourth Proportional to 104,120.05, 143,660.95 and 63,283.47

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Solution

The fourth proportional to 104,120.05, 143,660.95 and 63,283.47 is: 87,316.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,120.05 : 143,660.95 = 63,283.47 : x
  2. Step 2: Convert to fraction form
    104,120.05/143,660.95 = 63,283.47/x
  3. Step 3: Cross multiply
    104,120.05x = 143,660.95 × 63,283.47
  4. Step 4: Simplify right side
    104,120.05x = 9,091,363,419.50
  5. Step 5: Solve for x
    x = 9,091,363,419.50/104,120.05
  6. Step 6: Final answer
    x = 87,316.16

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1.5x scale

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.