Home / 137,291.63-189,452.05-83,570.67

Finding the Fourth Proportional to 137,291.63, 189,452.05 and 83,570.67

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Solution

The fourth proportional to 137,291.63, 189,452.05 and 83,570.67 is: 115,321.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,291.63 : 189,452.05 = 83,570.67 : x
  2. Step 2: Convert to fraction form
    137,291.63/189,452.05 = 83,570.67/x
  3. Step 3: Cross multiply
    137,291.63x = 189,452.05 × 83,570.67
  4. Step 4: Simplify right side
    137,291.63x = 15,832,634,542.45
  5. Step 5: Solve for x
    x = 15,832,634,542.45/137,291.63
  6. Step 6: Final answer
    x = 115,321.20

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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.