Home / 186,271.20-257,039.92-101,386.40

Finding the Fourth Proportional to 186,271.20, 257,039.92 and 101,386.40

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Solution

The fourth proportional to 186,271.20, 257,039.92 and 101,386.40 is: 139,905.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,271.20 : 257,039.92 = 101,386.40 : x
  2. Step 2: Convert to fraction form
    186,271.20/257,039.92 = 101,386.40/x
  3. Step 3: Cross multiply
    186,271.20x = 257,039.92 × 101,386.40
  4. Step 4: Simplify right side
    186,271.20x = 26,060,352,145.09
  5. Step 5: Solve for x
    x = 26,060,352,145.09/186,271.20
  6. Step 6: Final answer
    x = 139,905.43

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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.