Home / 97,208.20-145,812.30-81,656.20

Finding the Fourth Proportional to 97,208.20, 145,812.30 and 81,656.20

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Solution

The fourth proportional to 97,208.20, 145,812.30 and 81,656.20 is: 122,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,208.20 : 145,812.30 = 81,656.20 : x
  2. Step 2: Convert to fraction form
    97,208.20/145,812.30 = 81,656.20/x
  3. Step 3: Cross multiply
    97,208.20x = 145,812.30 × 81,656.20
  4. Step 4: Simplify right side
    97,208.20x = 11,906,478,331.26
  5. Step 5: Solve for x
    x = 11,906,478,331.26/97,208.20
  6. Step 6: Final answer
    x = 122,484.30

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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.