Home / 128,457.76-192,437.29-94,662.45

Finding the Fourth Proportional to 128,457.76, 192,437.29 and 94,662.45

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Solution

The fourth proportional to 128,457.76, 192,437.29 and 94,662.45 is: 141,809.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,457.76 : 192,437.29 = 94,662.45 : x
  2. Step 2: Convert to fraction form
    128,457.76/192,437.29 = 94,662.45/x
  3. Step 3: Cross multiply
    128,457.76x = 192,437.29 × 94,662.45
  4. Step 4: Simplify right side
    128,457.76x = 18,216,585,342.76
  5. Step 5: Solve for x
    x = 18,216,585,342.76/128,457.76
  6. Step 6: Final answer
    x = 141,809.93

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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.