Home / 186,559.47-257,458.10-105,985.53

Finding the Fourth Proportional to 186,559.47, 257,458.10 and 105,985.53

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Solution

The fourth proportional to 186,559.47, 257,458.10 and 105,985.53 is: 146,263.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,559.47 : 257,458.10 = 105,985.53 : x
  2. Step 2: Convert to fraction form
    186,559.47/257,458.10 = 105,985.53/x
  3. Step 3: Cross multiply
    186,559.47x = 257,458.10 × 105,985.53
  4. Step 4: Simplify right side
    186,559.47x = 27,286,832,651.37
  5. Step 5: Solve for x
    x = 27,286,832,651.37/186,559.47
  6. Step 6: Final answer
    x = 146,263.46

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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.