Home / 153,666.40-212,143.18-106,175.02

Finding the Fourth Proportional to 153,666.40, 212,143.18 and 106,175.02

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Solution

The fourth proportional to 153,666.40, 212,143.18 and 106,175.02 is: 146,579.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,666.40 : 212,143.18 = 106,175.02 : x
  2. Step 2: Convert to fraction form
    153,666.40/212,143.18 = 106,175.02/x
  3. Step 3: Cross multiply
    153,666.40x = 212,143.18 × 106,175.02
  4. Step 4: Simplify right side
    153,666.40x = 22,524,306,379.36
  5. Step 5: Solve for x
    x = 22,524,306,379.36/153,666.40
  6. Step 6: Final answer
    x = 146,579.25

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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.