Home / 186,948.09-257,987.05-102,065.15

Finding the Fourth Proportional to 186,948.09, 257,987.05 and 102,065.15

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Solution

The fourth proportional to 186,948.09, 257,987.05 and 102,065.15 is: 140,849.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,948.09 : 257,987.05 = 102,065.15 : x
  2. Step 2: Convert to fraction form
    186,948.09/257,987.05 = 102,065.15/x
  3. Step 3: Cross multiply
    186,948.09x = 257,987.05 × 102,065.15
  4. Step 4: Simplify right side
    186,948.09x = 26,331,486,956.31
  5. Step 5: Solve for x
    x = 26,331,486,956.31/186,948.09
  6. Step 6: Final answer
    x = 140,849.19

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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.