Home / 97,254.20-145,881.30-90,693.20

Finding the Fourth Proportional to 97,254.20, 145,881.30 and 90,693.20

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Solution

The fourth proportional to 97,254.20, 145,881.30 and 90,693.20 is: 136,039.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,254.20 : 145,881.30 = 90,693.20 : x
  2. Step 2: Convert to fraction form
    97,254.20/145,881.30 = 90,693.20/x
  3. Step 3: Cross multiply
    97,254.20x = 145,881.30 × 90,693.20
  4. Step 4: Simplify right side
    97,254.20x = 13,230,441,917.16
  5. Step 5: Solve for x
    x = 13,230,441,917.16/97,254.20
  6. Step 6: Final answer
    x = 136,039.80

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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.