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Finding the Fourth Proportional to 163,419.39, 245,014.74 and 83,482.11

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Solution

The fourth proportional to 163,419.39, 245,014.74 and 83,482.11 is: 125,164.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,419.39 : 245,014.74 = 83,482.11 : x
  2. Step 2: Convert to fraction form
    163,419.39/245,014.74 = 83,482.11/x
  3. Step 3: Cross multiply
    163,419.39x = 245,014.74 × 83,482.11
  4. Step 4: Simplify right side
    163,419.39x = 20,454,347,476.30
  5. Step 5: Solve for x
    x = 20,454,347,476.30/163,419.39
  6. Step 6: Final answer
    x = 125,164.75

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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.