Home / 155,846.12-215,068.62-84,225.96

Finding the Fourth Proportional to 155,846.12, 215,068.62 and 84,225.96

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Solution

The fourth proportional to 155,846.12, 215,068.62 and 84,225.96 is: 116,232.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,846.12 : 215,068.62 = 84,225.96 : x
  2. Step 2: Convert to fraction form
    155,846.12/215,068.62 = 84,225.96/x
  3. Step 3: Cross multiply
    155,846.12x = 215,068.62 × 84,225.96
  4. Step 4: Simplify right side
    155,846.12x = 18,114,360,985.38
  5. Step 5: Solve for x
    x = 18,114,360,985.38/155,846.12
  6. Step 6: Final answer
    x = 116,232.36

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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.