Home / 145,882.08-218,735.60-66,897.36

Finding the Fourth Proportional to 145,882.08, 218,735.60 and 66,897.36

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Solution

The fourth proportional to 145,882.08, 218,735.60 and 66,897.36 is: 100,305.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,882.08 : 218,735.60 = 66,897.36 : x
  2. Step 2: Convert to fraction form
    145,882.08/218,735.60 = 66,897.36/x
  3. Step 3: Cross multiply
    145,882.08x = 218,735.60 × 66,897.36
  4. Step 4: Simplify right side
    145,882.08x = 14,632,834,178.02
  5. Step 5: Solve for x
    x = 14,632,834,178.02/145,882.08
  6. Step 6: Final answer
    x = 100,305.91

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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.