Home / 345,661.02-518,582.25-109,011.42

Finding the Fourth Proportional to 345,661.02, 518,582.25 and 109,011.42

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Solution

The fourth proportional to 345,661.02, 518,582.25 and 109,011.42 is: 163,545.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,661.02 : 518,582.25 = 109,011.42 : x
  2. Step 2: Convert to fraction form
    345,661.02/518,582.25 = 109,011.42/x
  3. Step 3: Cross multiply
    345,661.02x = 518,582.25 × 109,011.42
  4. Step 4: Simplify right side
    345,661.02x = 56,531,387,459.30
  5. Step 5: Solve for x
    x = 56,531,387,459.30/345,661.02
  6. Step 6: Final answer
    x = 163,545.74

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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.