Home / 390,026.37-585,061.44-109,521.75

Finding the Fourth Proportional to 390,026.37, 585,061.44 and 109,521.75

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Solution

The fourth proportional to 390,026.37, 585,061.44 and 109,521.75 is: 164,288.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,026.37 : 585,061.44 = 109,521.75 : x
  2. Step 2: Convert to fraction form
    390,026.37/585,061.44 = 109,521.75/x
  3. Step 3: Cross multiply
    390,026.37x = 585,061.44 × 109,521.75
  4. Step 4: Simplify right side
    390,026.37x = 64,076,952,766.32
  5. Step 5: Solve for x
    x = 64,076,952,766.32/390,026.37
  6. Step 6: Final answer
    x = 164,288.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.