Home / 149,666.81-206,575.65-86,041.58

Finding the Fourth Proportional to 149,666.81, 206,575.65 and 86,041.58

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Solution

The fourth proportional to 149,666.81, 206,575.65 and 86,041.58 is: 118,757.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,666.81 : 206,575.65 = 86,041.58 : x
  2. Step 2: Convert to fraction form
    149,666.81/206,575.65 = 86,041.58/x
  3. Step 3: Cross multiply
    149,666.81x = 206,575.65 × 86,041.58
  4. Step 4: Simplify right side
    149,666.81x = 17,774,094,282.65
  5. Step 5: Solve for x
    x = 17,774,094,282.65/149,666.81
  6. Step 6: Final answer
    x = 118,757.76

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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.