Home / 155,012.29-213,909.96-87,028.02

Finding the Fourth Proportional to 155,012.29, 213,909.96 and 87,028.02

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Solution

The fourth proportional to 155,012.29, 213,909.96 and 87,028.02 is: 120,094.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,012.29 : 213,909.96 = 87,028.02 : x
  2. Step 2: Convert to fraction form
    155,012.29/213,909.96 = 87,028.02/x
  3. Step 3: Cross multiply
    155,012.29x = 213,909.96 × 87,028.02
  4. Step 4: Simplify right side
    155,012.29x = 18,616,160,277.08
  5. Step 5: Solve for x
    x = 18,616,160,277.08/155,012.29
  6. Step 6: Final answer
    x = 120,094.74

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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.