Home / 186,665.28-257,603.40-101,787

Finding the Fourth Proportional to 186,665.28, 257,603.40 and 101,787

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Solution

The fourth proportional to 186,665.28, 257,603.40 and 101,787 is: 140,468.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,665.28 : 257,603.40 = 101,787 : x
  2. Step 2: Convert to fraction form
    186,665.28/257,603.40 = 101,787/x
  3. Step 3: Cross multiply
    186,665.28x = 257,603.40 × 101,787
  4. Step 4: Simplify right side
    186,665.28x = 26,220,677,275.80
  5. Step 5: Solve for x
    x = 26,220,677,275.80/186,665.28
  6. Step 6: Final answer
    x = 140,468.96

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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.