Home / 186,271.17-257,059.72-131,920.58

Finding the Fourth Proportional to 186,271.17, 257,059.72 and 131,920.58

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Solution

The fourth proportional to 186,271.17, 257,059.72 and 131,920.58 is: 182,054.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,271.17 : 257,059.72 = 131,920.58 : x
  2. Step 2: Convert to fraction form
    186,271.17/257,059.72 = 131,920.58/x
  3. Step 3: Cross multiply
    186,271.17x = 257,059.72 × 131,920.58
  4. Step 4: Simplify right side
    186,271.17x = 33,911,465,741.94
  5. Step 5: Solve for x
    x = 33,911,465,741.94/186,271.17
  6. Step 6: Final answer
    x = 182,054.29

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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.