Home / 186,341.50-257,150.19-105,784.30

Finding the Fourth Proportional to 186,341.50, 257,150.19 and 105,784.30

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Solution

The fourth proportional to 186,341.50, 257,150.19 and 105,784.30 is: 145,981.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,341.50 : 257,150.19 = 105,784.30 : x
  2. Step 2: Convert to fraction form
    186,341.50/257,150.19 = 105,784.30/x
  3. Step 3: Cross multiply
    186,341.50x = 257,150.19 × 105,784.30
  4. Step 4: Simplify right side
    186,341.50x = 27,202,452,844.02
  5. Step 5: Solve for x
    x = 27,202,452,844.02/186,341.50
  6. Step 6: Final answer
    x = 145,981.72

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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.