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Finding the Fourth Proportional to 152,369, 210,199.44 and 98,671.31

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Solution

The fourth proportional to 152,369, 210,199.44 and 98,671.31 is: 136,121.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,369 : 210,199.44 = 98,671.31 : x
  2. Step 2: Convert to fraction form
    152,369/210,199.44 = 98,671.31/x
  3. Step 3: Cross multiply
    152,369x = 210,199.44 × 98,671.31
  4. Step 4: Simplify right side
    152,369x = 20,740,654,106.07
  5. Step 5: Solve for x
    x = 20,740,654,106.07/152,369
  6. Step 6: Final answer
    x = 136,121.22

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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.