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Finding the Fourth Proportional to 126,126, 174,055.08 and 69,539.40

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Solution

The fourth proportional to 126,126, 174,055.08 and 69,539.40 is: 95,965.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,126 : 174,055.08 = 69,539.40 : x
  2. Step 2: Convert to fraction form
    126,126/174,055.08 = 69,539.40/x
  3. Step 3: Cross multiply
    126,126x = 174,055.08 × 69,539.40
  4. Step 4: Simplify right side
    126,126x = 12,103,685,830.15
  5. Step 5: Solve for x
    x = 12,103,685,830.15/126,126
  6. Step 6: Final answer
    x = 95,965.03

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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.