Home / 126,988.08-190,569.60-56,945.76

Finding the Fourth Proportional to 126,988.08, 190,569.60 and 56,945.76

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Solution

The fourth proportional to 126,988.08, 190,569.60 and 56,945.76 is: 85,457.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,988.08 : 190,569.60 = 56,945.76 : x
  2. Step 2: Convert to fraction form
    126,988.08/190,569.60 = 56,945.76/x
  3. Step 3: Cross multiply
    126,988.08x = 190,569.60 × 56,945.76
  4. Step 4: Simplify right side
    126,988.08x = 10,852,130,704.90
  5. Step 5: Solve for x
    x = 10,852,130,704.90/126,988.08
  6. Step 6: Final answer
    x = 85,457.87

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1.5x scale

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.