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Finding the Fourth Proportional to 126,952.50, 175,200.17 and 72,509.40

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Solution

The fourth proportional to 126,952.50, 175,200.17 and 72,509.40 is: 100,066.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,952.50 : 175,200.17 = 72,509.40 : x
  2. Step 2: Convert to fraction form
    126,952.50/175,200.17 = 72,509.40/x
  3. Step 3: Cross multiply
    126,952.50x = 175,200.17 × 72,509.40
  4. Step 4: Simplify right side
    126,952.50x = 12,703,658,844.05
  5. Step 5: Solve for x
    x = 12,703,658,844.05/126,952.50
  6. Step 6: Final answer
    x = 100,066.24

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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.