Home / 145,703.67-201,044.40-81,171.35

Finding the Fourth Proportional to 145,703.67, 201,044.40 and 81,171.35

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Solution

The fourth proportional to 145,703.67, 201,044.40 and 81,171.35 is: 112,001.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,703.67 : 201,044.40 = 81,171.35 : x
  2. Step 2: Convert to fraction form
    145,703.67/201,044.40 = 81,171.35/x
  3. Step 3: Cross multiply
    145,703.67x = 201,044.40 × 81,171.35
  4. Step 4: Simplify right side
    145,703.67x = 16,319,045,357.94
  5. Step 5: Solve for x
    x = 16,319,045,357.94/145,703.67
  6. Step 6: Final answer
    x = 112,001.61

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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.