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Finding the Fourth Proportional to 163,829.80, 245,550.30 and 84,903.40

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Solution

The fourth proportional to 163,829.80, 245,550.30 and 84,903.40 is: 127,254.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,829.80 : 245,550.30 = 84,903.40 : x
  2. Step 2: Convert to fraction form
    163,829.80/245,550.30 = 84,903.40/x
  3. Step 3: Cross multiply
    163,829.80x = 245,550.30 × 84,903.40
  4. Step 4: Simplify right side
    163,829.80x = 20,848,055,341.02
  5. Step 5: Solve for x
    x = 20,848,055,341.02/163,829.80
  6. Step 6: Final answer
    x = 127,254.35

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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.