Home / 186,313.92-257,104.71-101,430.78

Finding the Fourth Proportional to 186,313.92, 257,104.71 and 101,430.78

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Solution

The fourth proportional to 186,313.92, 257,104.71 and 101,430.78 is: 139,969.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,313.92 : 257,104.71 = 101,430.78 : x
  2. Step 2: Convert to fraction form
    186,313.92/257,104.71 = 101,430.78/x
  3. Step 3: Cross multiply
    186,313.92x = 257,104.71 × 101,430.78
  4. Step 4: Simplify right side
    186,313.92x = 26,078,331,276.97
  5. Step 5: Solve for x
    x = 26,078,331,276.97/186,313.92
  6. Step 6: Final answer
    x = 139,969.85

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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.