Home / 150,858.58-208,155.38-86,347.55

Finding the Fourth Proportional to 150,858.58, 208,155.38 and 86,347.55

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Solution

The fourth proportional to 150,858.58, 208,155.38 and 86,347.55 is: 119,142.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,858.58 : 208,155.38 = 86,347.55 : x
  2. Step 2: Convert to fraction form
    150,858.58/208,155.38 = 86,347.55/x
  3. Step 3: Cross multiply
    150,858.58x = 208,155.38 × 86,347.55
  4. Step 4: Simplify right side
    150,858.58x = 17,973,707,082.32
  5. Step 5: Solve for x
    x = 17,973,707,082.32/150,858.58
  6. Step 6: Final answer
    x = 119,142.76

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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.