Home / 108,598.99-149,777.75-76,440.06

Finding the Fourth Proportional to 108,598.99, 149,777.75 and 76,440.06

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Solution

The fourth proportional to 108,598.99, 149,777.75 and 76,440.06 is: 105,424.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,598.99 : 149,777.75 = 76,440.06 : x
  2. Step 2: Convert to fraction form
    108,598.99/149,777.75 = 76,440.06/x
  3. Step 3: Cross multiply
    108,598.99x = 149,777.75 × 76,440.06
  4. Step 4: Simplify right side
    108,598.99x = 11,449,019,814.46
  5. Step 5: Solve for x
    x = 11,449,019,814.46/108,598.99
  6. Step 6: Final answer
    x = 105,424.74

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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.