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Finding the Fourth Proportional to 108,898.83, 163,390.50 and 42,385.68

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Solution

The fourth proportional to 108,898.83, 163,390.50 and 42,385.68 is: 63,594.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,898.83 : 163,390.50 = 42,385.68 : x
  2. Step 2: Convert to fraction form
    108,898.83/163,390.50 = 42,385.68/x
  3. Step 3: Cross multiply
    108,898.83x = 163,390.50 × 42,385.68
  4. Step 4: Simplify right side
    108,898.83x = 6,925,417,448.04
  5. Step 5: Solve for x
    x = 6,925,417,448.04/108,898.83
  6. Step 6: Final answer
    x = 63,594.97

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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.