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Finding the Fourth Proportional to 163,846.80, 245,575.80 and 84,920.40

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Solution

The fourth proportional to 163,846.80, 245,575.80 and 84,920.40 is: 127,279.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,846.80 : 245,575.80 = 84,920.40 : x
  2. Step 2: Convert to fraction form
    163,846.80/245,575.80 = 84,920.40/x
  3. Step 3: Cross multiply
    163,846.80x = 245,575.80 × 84,920.40
  4. Step 4: Simplify right side
    163,846.80x = 20,854,395,166.32
  5. Step 5: Solve for x
    x = 20,854,395,166.32/163,846.80
  6. Step 6: Final answer
    x = 127,279.84

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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.