Home / 102,405.29-153,625.53-31,326.21

Finding the Fourth Proportional to 102,405.29, 153,625.53 and 31,326.21

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Solution

The fourth proportional to 102,405.29, 153,625.53 and 31,326.21 is: 46,994.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,405.29 : 153,625.53 = 31,326.21 : x
  2. Step 2: Convert to fraction form
    102,405.29/153,625.53 = 31,326.21/x
  3. Step 3: Cross multiply
    102,405.29x = 153,625.53 × 31,326.21
  4. Step 4: Simplify right side
    102,405.29x = 4,812,505,614.14
  5. Step 5: Solve for x
    x = 4,812,505,614.14/102,405.29
  6. Step 6: Final answer
    x = 46,994.70

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1.5x scale

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.