Home / 186,318.47-257,124.11-101,440.19

Finding the Fourth Proportional to 186,318.47, 257,124.11 and 101,440.19

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Solution

The fourth proportional to 186,318.47, 257,124.11 and 101,440.19 is: 139,989.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,318.47 : 257,124.11 = 101,440.19 : x
  2. Step 2: Convert to fraction form
    186,318.47/257,124.11 = 101,440.19/x
  3. Step 3: Cross multiply
    186,318.47x = 257,124.11 × 101,440.19
  4. Step 4: Simplify right side
    186,318.47x = 26,082,716,779.16
  5. Step 5: Solve for x
    x = 26,082,716,779.16/186,318.47
  6. Step 6: Final answer
    x = 139,989.97

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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.