Home / 345,877.02-518,831.43-105,973.74

Finding the Fourth Proportional to 345,877.02, 518,831.43 and 105,973.74

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Solution

The fourth proportional to 345,877.02, 518,831.43 and 105,973.74 is: 158,965.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,877.02 : 518,831.43 = 105,973.74 : x
  2. Step 2: Convert to fraction form
    345,877.02/518,831.43 = 105,973.74/x
  3. Step 3: Cross multiply
    345,877.02x = 518,831.43 × 105,973.74
  4. Step 4: Simplify right side
    345,877.02x = 54,982,507,066.65
  5. Step 5: Solve for x
    x = 54,982,507,066.65/345,877.02
  6. Step 6: Final answer
    x = 158,965.48

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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.