Home / 257,683.19-386,561.23-99,927.59

Finding the Fourth Proportional to 257,683.19, 386,561.23 and 99,927.59

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Solution

The fourth proportional to 257,683.19, 386,561.23 and 99,927.59 is: 149,905.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,683.19 : 386,561.23 = 99,927.59 : x
  2. Step 2: Convert to fraction form
    257,683.19/386,561.23 = 99,927.59/x
  3. Step 3: Cross multiply
    257,683.19x = 386,561.23 × 99,927.59
  4. Step 4: Simplify right side
    257,683.19x = 38,628,129,918.71
  5. Step 5: Solve for x
    x = 38,628,129,918.71/257,683.19
  6. Step 6: Final answer
    x = 149,905.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.