Home / 128,340.17-191,570.24-113,189.93

Finding the Fourth Proportional to 128,340.17, 191,570.24 and 113,189.93

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Solution

The fourth proportional to 128,340.17, 191,570.24 and 113,189.93 is: 168,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,340.17 : 191,570.24 = 113,189.93 : x
  2. Step 2: Convert to fraction form
    128,340.17/191,570.24 = 113,189.93/x
  3. Step 3: Cross multiply
    128,340.17x = 191,570.24 × 113,189.93
  4. Step 4: Simplify right side
    128,340.17x = 21,683,822,055.68
  5. Step 5: Solve for x
    x = 21,683,822,055.68/128,340.17
  6. Step 6: Final answer
    x = 168,955.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.