Home / 186,889.06-257,897.28-101,989.72

Finding the Fourth Proportional to 186,889.06, 257,897.28 and 101,989.72

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Solution

The fourth proportional to 186,889.06, 257,897.28 and 101,989.72 is: 140,740.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,889.06 : 257,897.28 = 101,989.72 : x
  2. Step 2: Convert to fraction form
    186,889.06/257,897.28 = 101,989.72/x
  3. Step 3: Cross multiply
    186,889.06x = 257,897.28 × 101,989.72
  4. Step 4: Simplify right side
    186,889.06x = 26,302,871,375.96
  5. Step 5: Solve for x
    x = 26,302,871,375.96/186,889.06
  6. Step 6: Final answer
    x = 140,740.56

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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.