Home / 102,480.25-153,714.84-31,403.10

Finding the Fourth Proportional to 102,480.25, 153,714.84 and 31,403.10

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Solution

The fourth proportional to 102,480.25, 153,714.84 and 31,403.10 is: 47,102.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,480.25 : 153,714.84 = 31,403.10 : x
  2. Step 2: Convert to fraction form
    102,480.25/153,714.84 = 31,403.10/x
  3. Step 3: Cross multiply
    102,480.25x = 153,714.84 × 31,403.10
  4. Step 4: Simplify right side
    102,480.25x = 4,827,121,852.29
  5. Step 5: Solve for x
    x = 4,827,121,852.29/102,480.25
  6. Step 6: Final answer
    x = 47,102.95

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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.