Home / 128,025.92-176,674.50-70,665.68

Finding the Fourth Proportional to 128,025.92, 176,674.50 and 70,665.68

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Solution

The fourth proportional to 128,025.92, 176,674.50 and 70,665.68 is: 97,517.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,025.92 : 176,674.50 = 70,665.68 : x
  2. Step 2: Convert to fraction form
    128,025.92/176,674.50 = 70,665.68/x
  3. Step 3: Cross multiply
    128,025.92x = 176,674.50 × 70,665.68
  4. Step 4: Simplify right side
    128,025.92x = 12,484,823,681.16
  5. Step 5: Solve for x
    x = 12,484,823,681.16/128,025.92
  6. Step 6: Final answer
    x = 97,517.94

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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.