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Finding the Fourth Proportional to 108,962.80, 163,411.80 and 42,364.60

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Solution

The fourth proportional to 108,962.80, 163,411.80 and 42,364.60 is: 63,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,962.80 : 163,411.80 = 42,364.60 : x
  2. Step 2: Convert to fraction form
    108,962.80/163,411.80 = 42,364.60/x
  3. Step 3: Cross multiply
    108,962.80x = 163,411.80 × 42,364.60
  4. Step 4: Simplify right side
    108,962.80x = 6,922,875,542.28
  5. Step 5: Solve for x
    x = 6,922,875,542.28/108,962.80
  6. Step 6: Final answer
    x = 63,534.30

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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.