Home / 186,341.11-257,123.16-105,753.20

Finding the Fourth Proportional to 186,341.11, 257,123.16 and 105,753.20

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Solution

The fourth proportional to 186,341.11, 257,123.16 and 105,753.20 is: 145,923.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,341.11 : 257,123.16 = 105,753.20 : x
  2. Step 2: Convert to fraction form
    186,341.11/257,123.16 = 105,753.20/x
  3. Step 3: Cross multiply
    186,341.11x = 257,123.16 × 105,753.20
  4. Step 4: Simplify right side
    186,341.11x = 27,191,595,678.50
  5. Step 5: Solve for x
    x = 27,191,595,678.50/186,341.11
  6. Step 6: Final answer
    x = 145,923.76

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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.