Home / 129,587.77-178,830.34-73,017.37

Finding the Fourth Proportional to 129,587.77, 178,830.34 and 73,017.37

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Solution

The fourth proportional to 129,587.77, 178,830.34 and 73,017.37 is: 100,763.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,587.77 : 178,830.34 = 73,017.37 : x
  2. Step 2: Convert to fraction form
    129,587.77/178,830.34 = 73,017.37/x
  3. Step 3: Cross multiply
    129,587.77x = 178,830.34 × 73,017.37
  4. Step 4: Simplify right side
    129,587.77x = 13,057,721,103.01
  5. Step 5: Solve for x
    x = 13,057,721,103.01/129,587.77
  6. Step 6: Final answer
    x = 100,763.53

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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.