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Finding the Fourth Proportional to 108,597.93, 149,776.29 and 76,439.01

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Solution

The fourth proportional to 108,597.93, 149,776.29 and 76,439.01 is: 105,423.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,597.93 : 149,776.29 = 76,439.01 : x
  2. Step 2: Convert to fraction form
    108,597.93/149,776.29 = 76,439.01/x
  3. Step 3: Cross multiply
    108,597.93x = 149,776.29 × 76,439.01
  4. Step 4: Simplify right side
    108,597.93x = 11,448,751,329.07
  5. Step 5: Solve for x
    x = 11,448,751,329.07/108,597.93
  6. Step 6: Final answer
    x = 105,423.29

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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.