Home / 186,639.72-257,565.60-101,758.20

Finding the Fourth Proportional to 186,639.72, 257,565.60 and 101,758.20

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Solution

The fourth proportional to 186,639.72, 257,565.60 and 101,758.20 is: 140,427.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,639.72 : 257,565.60 = 101,758.20 : x
  2. Step 2: Convert to fraction form
    186,639.72/257,565.60 = 101,758.20/x
  3. Step 3: Cross multiply
    186,639.72x = 257,565.60 × 101,758.20
  4. Step 4: Simplify right side
    186,639.72x = 26,209,411,837.92
  5. Step 5: Solve for x
    x = 26,209,411,837.92/186,639.72
  6. Step 6: Final answer
    x = 140,427.84

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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.