Home / 186,309.18-257,062.95-105,718.50

Finding the Fourth Proportional to 186,309.18, 257,062.95 and 105,718.50

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Solution

The fourth proportional to 186,309.18, 257,062.95 and 105,718.50 is: 145,866.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,309.18 : 257,062.95 = 105,718.50 : x
  2. Step 2: Convert to fraction form
    186,309.18/257,062.95 = 105,718.50/x
  3. Step 3: Cross multiply
    186,309.18x = 257,062.95 × 105,718.50
  4. Step 4: Simplify right side
    186,309.18x = 27,176,309,479.58
  5. Step 5: Solve for x
    x = 27,176,309,479.58/186,309.18
  6. Step 6: Final answer
    x = 145,866.72

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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.