Home / 128,275.01-191,473.10-113,124.87

Finding the Fourth Proportional to 128,275.01, 191,473.10 and 113,124.87

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Solution

The fourth proportional to 128,275.01, 191,473.10 and 113,124.87 is: 168,858.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,275.01 : 191,473.10 = 113,124.87 : x
  2. Step 2: Convert to fraction form
    128,275.01/191,473.10 = 113,124.87/x
  3. Step 3: Cross multiply
    128,275.01x = 191,473.10 × 113,124.87
  4. Step 4: Simplify right side
    128,275.01x = 21,660,370,307.49
  5. Step 5: Solve for x
    x = 21,660,370,307.49/128,275.01
  6. Step 6: Final answer
    x = 168,858.85

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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.