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Finding the Fourth Proportional to 112,947, 169,087.62 and 98,934.40

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Solution

The fourth proportional to 112,947, 169,087.62 and 98,934.40 is: 148,110.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,947 : 169,087.62 = 98,934.40 : x
  2. Step 2: Convert to fraction form
    112,947/169,087.62 = 98,934.40/x
  3. Step 3: Cross multiply
    112,947x = 169,087.62 × 98,934.40
  4. Step 4: Simplify right side
    112,947x = 16,728,582,232.13
  5. Step 5: Solve for x
    x = 16,728,582,232.13/112,947
  6. Step 6: Final answer
    x = 148,110.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.