Home / 110,462.40-152,539.20-80,421.12

Finding the Fourth Proportional to 110,462.40, 152,539.20 and 80,421.12

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Solution

The fourth proportional to 110,462.40, 152,539.20 and 80,421.12 is: 111,054.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,462.40 : 152,539.20 = 80,421.12 : x
  2. Step 2: Convert to fraction form
    110,462.40/152,539.20 = 80,421.12/x
  3. Step 3: Cross multiply
    110,462.40x = 152,539.20 × 80,421.12
  4. Step 4: Simplify right side
    110,462.40x = 12,267,373,307.90
  5. Step 5: Solve for x
    x = 12,267,373,307.90/110,462.40
  6. Step 6: Final answer
    x = 111,054.74

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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.