Home / 228,105.16-314,779.50-126,128.03

Finding the Fourth Proportional to 228,105.16, 314,779.50 and 126,128.03

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Solution

The fourth proportional to 228,105.16, 314,779.50 and 126,128.03 is: 174,053.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,105.16 : 314,779.50 = 126,128.03 : x
  2. Step 2: Convert to fraction form
    228,105.16/314,779.50 = 126,128.03/x
  3. Step 3: Cross multiply
    228,105.16x = 314,779.50 × 126,128.03
  4. Step 4: Simplify right side
    228,105.16x = 39,702,516,645.49
  5. Step 5: Solve for x
    x = 39,702,516,645.49/228,105.16
  6. Step 6: Final answer
    x = 174,053.57

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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.