Home / 145,536.16-218,044.54-78,933.82

Finding the Fourth Proportional to 145,536.16, 218,044.54 and 78,933.82

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Solution

The fourth proportional to 145,536.16, 218,044.54 and 78,933.82 is: 118,259.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,536.16 : 218,044.54 = 78,933.82 : x
  2. Step 2: Convert to fraction form
    145,536.16/218,044.54 = 78,933.82/x
  3. Step 3: Cross multiply
    145,536.16x = 218,044.54 × 78,933.82
  4. Step 4: Simplify right side
    145,536.16x = 17,211,088,472.34
  5. Step 5: Solve for x
    x = 17,211,088,472.34/145,536.16
  6. Step 6: Final answer
    x = 118,259.88

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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.