Home / 154,521.48-213,266.34-87,453.48

Finding the Fourth Proportional to 154,521.48, 213,266.34 and 87,453.48

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Solution

The fourth proportional to 154,521.48, 213,266.34 and 87,453.48 is: 120,700.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,521.48 : 213,266.34 = 87,453.48 : x
  2. Step 2: Convert to fraction form
    154,521.48/213,266.34 = 87,453.48/x
  3. Step 3: Cross multiply
    154,521.48x = 213,266.34 × 87,453.48
  4. Step 4: Simplify right side
    154,521.48x = 18,650,883,599.86
  5. Step 5: Solve for x
    x = 18,650,883,599.86/154,521.48
  6. Step 6: Final answer
    x = 120,700.91

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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.