Home / 186,342.16-257,139.18-105,771.34

Finding the Fourth Proportional to 186,342.16, 257,139.18 and 105,771.34

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Solution

The fourth proportional to 186,342.16, 257,139.18 and 105,771.34 is: 145,957.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,342.16 : 257,139.18 = 105,771.34 : x
  2. Step 2: Convert to fraction form
    186,342.16/257,139.18 = 105,771.34/x
  3. Step 3: Cross multiply
    186,342.16x = 257,139.18 × 105,771.34
  4. Step 4: Simplify right side
    186,342.16x = 27,197,955,635.10
  5. Step 5: Solve for x
    x = 27,197,955,635.10/186,342.16
  6. Step 6: Final answer
    x = 145,957.07

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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.