Home / 110,780.46-153,004.50-80,700.30

Finding the Fourth Proportional to 110,780.46, 153,004.50 and 80,700.30

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Solution

The fourth proportional to 110,780.46, 153,004.50 and 80,700.30 is: 111,459.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,780.46 : 153,004.50 = 80,700.30 : x
  2. Step 2: Convert to fraction form
    110,780.46/153,004.50 = 80,700.30/x
  3. Step 3: Cross multiply
    110,780.46x = 153,004.50 × 80,700.30
  4. Step 4: Simplify right side
    110,780.46x = 12,347,509,051.35
  5. Step 5: Solve for x
    x = 12,347,509,051.35/110,780.46
  6. Step 6: Final answer
    x = 111,459.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.