Home / 120,973.07-181,459.61-54,335.38

Finding the Fourth Proportional to 120,973.07, 181,459.61 and 54,335.38

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Solution

The fourth proportional to 120,973.07, 181,459.61 and 54,335.38 is: 81,503.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,973.07 : 181,459.61 = 54,335.38 : x
  2. Step 2: Convert to fraction form
    120,973.07/181,459.61 = 54,335.38/x
  3. Step 3: Cross multiply
    120,973.07x = 181,459.61 × 54,335.38
  4. Step 4: Simplify right side
    120,973.07x = 9,859,676,864.00
  5. Step 5: Solve for x
    x = 9,859,676,864.00/120,973.07
  6. Step 6: Final answer
    x = 81,503.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.