Home / 110,103.12-151,899.57-77,885.10

Finding the Fourth Proportional to 110,103.12, 151,899.57 and 77,885.10

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Solution

The fourth proportional to 110,103.12, 151,899.57 and 77,885.10 is: 107,451.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,103.12 : 151,899.57 = 77,885.10 : x
  2. Step 2: Convert to fraction form
    110,103.12/151,899.57 = 77,885.10/x
  3. Step 3: Cross multiply
    110,103.12x = 151,899.57 × 77,885.10
  4. Step 4: Simplify right side
    110,103.12x = 11,830,713,199.41
  5. Step 5: Solve for x
    x = 11,830,713,199.41/110,103.12
  6. Step 6: Final answer
    x = 107,451.21

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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.