Home / 110,426.21-152,349.35-72,208.12

Finding the Fourth Proportional to 110,426.21, 152,349.35 and 72,208.12

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Solution

The fourth proportional to 110,426.21, 152,349.35 and 72,208.12 is: 99,621.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,426.21 : 152,349.35 = 72,208.12 : x
  2. Step 2: Convert to fraction form
    110,426.21/152,349.35 = 72,208.12/x
  3. Step 3: Cross multiply
    110,426.21x = 152,349.35 × 72,208.12
  4. Step 4: Simplify right side
    110,426.21x = 11,000,859,023.93
  5. Step 5: Solve for x
    x = 11,000,859,023.93/110,426.21
  6. Step 6: Final answer
    x = 99,621.81

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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.