Home / 205,914.16-309,070.98-99,373.10

Finding the Fourth Proportional to 205,914.16, 309,070.98 and 99,373.10

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Solution

The fourth proportional to 205,914.16, 309,070.98 and 99,373.10 is: 149,156.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,914.16 : 309,070.98 = 99,373.10 : x
  2. Step 2: Convert to fraction form
    205,914.16/309,070.98 = 99,373.10/x
  3. Step 3: Cross multiply
    205,914.16x = 309,070.98 × 99,373.10
  4. Step 4: Simplify right side
    205,914.16x = 30,713,341,402.64
  5. Step 5: Solve for x
    x = 30,713,341,402.64/205,914.16
  6. Step 6: Final answer
    x = 149,156.04

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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.