Home / 145,951.16-218,872.98-52,431.80

Finding the Fourth Proportional to 145,951.16, 218,872.98 and 52,431.80

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Solution

The fourth proportional to 145,951.16, 218,872.98 and 52,431.80 is: 78,628.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,951.16 : 218,872.98 = 52,431.80 : x
  2. Step 2: Convert to fraction form
    145,951.16/218,872.98 = 52,431.80/x
  3. Step 3: Cross multiply
    145,951.16x = 218,872.98 × 52,431.80
  4. Step 4: Simplify right side
    145,951.16x = 11,475,904,312.76
  5. Step 5: Solve for x
    x = 11,475,904,312.76/145,951.16
  6. Step 6: Final answer
    x = 78,628.39

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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.