Home / 145,220.70-217,841.85-51,714.30

Finding the Fourth Proportional to 145,220.70, 217,841.85 and 51,714.30

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Solution

The fourth proportional to 145,220.70, 217,841.85 and 51,714.30 is: 77,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,220.70 : 217,841.85 = 51,714.30 : x
  2. Step 2: Convert to fraction form
    145,220.70/217,841.85 = 51,714.30/x
  3. Step 3: Cross multiply
    145,220.70x = 217,841.85 × 51,714.30
  4. Step 4: Simplify right side
    145,220.70x = 11,265,538,783.46
  5. Step 5: Solve for x
    x = 11,265,538,783.46/145,220.70
  6. Step 6: Final answer
    x = 77,575.30

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1.5x scale

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.