Home / 145,342.55-218,145.05-61,164.92

Finding the Fourth Proportional to 145,342.55, 218,145.05 and 61,164.92

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Solution

The fourth proportional to 145,342.55, 218,145.05 and 61,164.92 is: 91,802.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,342.55 : 218,145.05 = 61,164.92 : x
  2. Step 2: Convert to fraction form
    145,342.55/218,145.05 = 61,164.92/x
  3. Step 3: Cross multiply
    145,342.55x = 218,145.05 × 61,164.92
  4. Step 4: Simplify right side
    145,342.55x = 13,342,825,000.55
  5. Step 5: Solve for x
    x = 13,342,825,000.55/145,342.55
  6. Step 6: Final answer
    x = 91,802.61

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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.