Home / 345,878.02-518,832.93-105,974.74

Finding the Fourth Proportional to 345,878.02, 518,832.93 and 105,974.74

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Solution

The fourth proportional to 345,878.02, 518,832.93 and 105,974.74 is: 158,966.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,878.02 : 518,832.93 = 105,974.74 : x
  2. Step 2: Convert to fraction form
    345,878.02/518,832.93 = 105,974.74/x
  3. Step 3: Cross multiply
    345,878.02x = 518,832.93 × 105,974.74
  4. Step 4: Simplify right side
    345,878.02x = 54,983,184,860.19
  5. Step 5: Solve for x
    x = 54,983,184,860.19/345,878.02
  6. Step 6: Final answer
    x = 158,966.98

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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.