Home / 340,019.15-510,029.09-126,783.81

Finding the Fourth Proportional to 340,019.15, 510,029.09 and 126,783.81

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Solution

The fourth proportional to 340,019.15, 510,029.09 and 126,783.81 is: 190,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,019.15 : 510,029.09 = 126,783.81 : x
  2. Step 2: Convert to fraction form
    340,019.15/510,029.09 = 126,783.81/x
  3. Step 3: Cross multiply
    340,019.15x = 510,029.09 × 126,783.81
  4. Step 4: Simplify right side
    340,019.15x = 64,663,430,607.11
  5. Step 5: Solve for x
    x = 64,663,430,607.11/340,019.15
  6. Step 6: Final answer
    x = 190,175.85

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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.