Home / 145,423.86-218,003.70-51,907.74

Finding the Fourth Proportional to 145,423.86, 218,003.70 and 51,907.74

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Solution

The fourth proportional to 145,423.86, 218,003.70 and 51,907.74 is: 77,814.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,423.86 : 218,003.70 = 51,907.74 : x
  2. Step 2: Convert to fraction form
    145,423.86/218,003.70 = 51,907.74/x
  3. Step 3: Cross multiply
    145,423.86x = 218,003.70 × 51,907.74
  4. Step 4: Simplify right side
    145,423.86x = 11,316,079,378.64
  5. Step 5: Solve for x
    x = 11,316,079,378.64/145,423.86
  6. Step 6: Final answer
    x = 77,814.46

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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.