Home / 154,363.02-213,015.15-87,296.46

Finding the Fourth Proportional to 154,363.02, 213,015.15 and 87,296.46

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Solution

The fourth proportional to 154,363.02, 213,015.15 and 87,296.46 is: 120,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,363.02 : 213,015.15 = 87,296.46 : x
  2. Step 2: Convert to fraction form
    154,363.02/213,015.15 = 87,296.46/x
  3. Step 3: Cross multiply
    154,363.02x = 213,015.15 × 87,296.46
  4. Step 4: Simplify right side
    154,363.02x = 18,595,468,521.37
  5. Step 5: Solve for x
    x = 18,595,468,521.37/154,363.02
  6. Step 6: Final answer
    x = 120,465.82

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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.