Home / 159,053.61-219,488.40-87,433.12

Finding the Fourth Proportional to 159,053.61, 219,488.40 and 87,433.12

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Solution

The fourth proportional to 159,053.61, 219,488.40 and 87,433.12 is: 120,654.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,053.61 : 219,488.40 = 87,433.12 : x
  2. Step 2: Convert to fraction form
    159,053.61/219,488.40 = 87,433.12/x
  3. Step 3: Cross multiply
    159,053.61x = 219,488.40 × 87,433.12
  4. Step 4: Simplify right side
    159,053.61x = 19,190,555,615.81
  5. Step 5: Solve for x
    x = 19,190,555,615.81/159,053.61
  6. Step 6: Final answer
    x = 120,654.64

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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.