Home / 186,891.59-257,886.27-105,209.52

Finding the Fourth Proportional to 186,891.59, 257,886.27 and 105,209.52

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Solution

The fourth proportional to 186,891.59, 257,886.27 and 105,209.52 is: 145,175.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,891.59 : 257,886.27 = 105,209.52 : x
  2. Step 2: Convert to fraction form
    186,891.59/257,886.27 = 105,209.52/x
  3. Step 3: Cross multiply
    186,891.59x = 257,886.27 × 105,209.52
  4. Step 4: Simplify right side
    186,891.59x = 27,132,090,681.29
  5. Step 5: Solve for x
    x = 27,132,090,681.29/186,891.59
  6. Step 6: Final answer
    x = 145,175.56

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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.