Home / 186,859.10-257,867.35-101,976.17

Finding the Fourth Proportional to 186,859.10, 257,867.35 and 101,976.17

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Solution

The fourth proportional to 186,859.10, 257,867.35 and 101,976.17 is: 140,728.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,859.10 : 257,867.35 = 101,976.17 : x
  2. Step 2: Convert to fraction form
    186,859.10/257,867.35 = 101,976.17/x
  3. Step 3: Cross multiply
    186,859.10x = 257,867.35 × 101,976.17
  4. Step 4: Simplify right side
    186,859.10x = 26,296,323,176.77
  5. Step 5: Solve for x
    x = 26,296,323,176.77/186,859.10
  6. Step 6: Final answer
    x = 140,728.08

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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.