Home / 228,156.09-314,858.10-126,189.91

Finding the Fourth Proportional to 228,156.09, 314,858.10 and 126,189.91

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Solution

The fourth proportional to 228,156.09, 314,858.10 and 126,189.91 is: 174,143.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,156.09 : 314,858.10 = 126,189.91 : x
  2. Step 2: Convert to fraction form
    228,156.09/314,858.10 = 126,189.91/x
  3. Step 3: Cross multiply
    228,156.09x = 314,858.10 × 126,189.91
  4. Step 4: Simplify right side
    228,156.09x = 39,731,915,301.77
  5. Step 5: Solve for x
    x = 39,731,915,301.77/228,156.09
  6. Step 6: Final answer
    x = 174,143.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.