Home / 128,259.41-176,998.57-70,117.34

Finding the Fourth Proportional to 128,259.41, 176,998.57 and 70,117.34

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Solution

The fourth proportional to 128,259.41, 176,998.57 and 70,117.34 is: 96,762.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,259.41 : 176,998.57 = 70,117.34 : x
  2. Step 2: Convert to fraction form
    128,259.41/176,998.57 = 70,117.34/x
  3. Step 3: Cross multiply
    128,259.41x = 176,998.57 × 70,117.34
  4. Step 4: Simplify right side
    128,259.41x = 12,410,667,851.92
  5. Step 5: Solve for x
    x = 12,410,667,851.92/128,259.41
  6. Step 6: Final answer
    x = 96,762.24

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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.