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Finding the Fourth Proportional to 112,364.70, 168,547.05 and 103,811.10

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Solution

The fourth proportional to 112,364.70, 168,547.05 and 103,811.10 is: 155,716.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,364.70 : 168,547.05 = 103,811.10 : x
  2. Step 2: Convert to fraction form
    112,364.70/168,547.05 = 103,811.10/x
  3. Step 3: Cross multiply
    112,364.70x = 168,547.05 × 103,811.10
  4. Step 4: Simplify right side
    112,364.70x = 17,497,054,662.26
  5. Step 5: Solve for x
    x = 17,497,054,662.26/112,364.70
  6. Step 6: Final answer
    x = 155,716.65

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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.