Home / 186,439.01-257,285.45-101,555.87

Finding the Fourth Proportional to 186,439.01, 257,285.45 and 101,555.87

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Solution

The fourth proportional to 186,439.01, 257,285.45 and 101,555.87 is: 140,146.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,439.01 : 257,285.45 = 101,555.87 : x
  2. Step 2: Convert to fraction form
    186,439.01/257,285.45 = 101,555.87/x
  3. Step 3: Cross multiply
    186,439.01x = 257,285.45 × 101,555.87
  4. Step 4: Simplify right side
    186,439.01x = 26,128,847,205.31
  5. Step 5: Solve for x
    x = 26,128,847,205.31/186,439.01
  6. Step 6: Final answer
    x = 140,146.89

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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.