Home / 154,576.81-213,312.27-86,596.65

Finding the Fourth Proportional to 154,576.81, 213,312.27 and 86,596.65

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Solution

The fourth proportional to 154,576.81, 213,312.27 and 86,596.65 is: 119,501.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,576.81 : 213,312.27 = 86,596.65 : x
  2. Step 2: Convert to fraction form
    154,576.81/213,312.27 = 86,596.65/x
  3. Step 3: Cross multiply
    154,576.81x = 213,312.27 × 86,596.65
  4. Step 4: Simplify right side
    154,576.81x = 18,472,127,985.90
  5. Step 5: Solve for x
    x = 18,472,127,985.90/154,576.81
  6. Step 6: Final answer
    x = 119,501.29

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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.