Home / 108,957.30-163,403.55-42,359.10

Finding the Fourth Proportional to 108,957.30, 163,403.55 and 42,359.10

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Solution

The fourth proportional to 108,957.30, 163,403.55 and 42,359.10 is: 63,526.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,957.30 : 163,403.55 = 42,359.10 : x
  2. Step 2: Convert to fraction form
    108,957.30/163,403.55 = 42,359.10/x
  3. Step 3: Cross multiply
    108,957.30x = 163,403.55 × 42,359.10
  4. Step 4: Simplify right side
    108,957.30x = 6,921,627,314.81
  5. Step 5: Solve for x
    x = 6,921,627,314.81/108,957.30
  6. Step 6: Final answer
    x = 63,526.05

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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.