Home / 108,749.16-149,914.98-76,861.80

Finding the Fourth Proportional to 108,749.16, 149,914.98 and 76,861.80

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Solution

The fourth proportional to 108,749.16, 149,914.98 and 76,861.80 is: 105,957.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,749.16 : 149,914.98 = 76,861.80 : x
  2. Step 2: Convert to fraction form
    108,749.16/149,914.98 = 76,861.80/x
  3. Step 3: Cross multiply
    108,749.16x = 149,914.98 × 76,861.80
  4. Step 4: Simplify right side
    108,749.16x = 11,522,735,209.76
  5. Step 5: Solve for x
    x = 11,522,735,209.76/108,749.16
  6. Step 6: Final answer
    x = 105,957.00

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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.