Home / 186,660.32-257,509.26-126,209.10

Finding the Fourth Proportional to 186,660.32, 257,509.26 and 126,209.10

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Solution

The fourth proportional to 186,660.32, 257,509.26 and 126,209.10 is: 174,113.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,660.32 : 257,509.26 = 126,209.10 : x
  2. Step 2: Convert to fraction form
    186,660.32/257,509.26 = 126,209.10/x
  3. Step 3: Cross multiply
    186,660.32x = 257,509.26 × 126,209.10
  4. Step 4: Simplify right side
    186,660.32x = 32,500,011,946.27
  5. Step 5: Solve for x
    x = 32,500,011,946.27/186,660.32
  6. Step 6: Final answer
    x = 174,113.13

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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.