Home / 158,139.56-218,166.90-103,676.84

Finding the Fourth Proportional to 158,139.56, 218,166.90 and 103,676.84

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Solution

The fourth proportional to 158,139.56, 218,166.90 and 103,676.84 is: 143,030.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,139.56 : 218,166.90 = 103,676.84 : x
  2. Step 2: Convert to fraction form
    158,139.56/218,166.90 = 103,676.84/x
  3. Step 3: Cross multiply
    158,139.56x = 218,166.90 × 103,676.84
  4. Step 4: Simplify right side
    158,139.56x = 22,618,854,784.60
  5. Step 5: Solve for x
    x = 22,618,854,784.60/158,139.56
  6. Step 6: Final answer
    x = 143,030.97

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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.