Home / 108,973.65-163,405.80-49,742.40

Finding the Fourth Proportional to 108,973.65, 163,405.80 and 49,742.40

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Solution

The fourth proportional to 108,973.65, 163,405.80 and 49,742.40 is: 74,588.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,973.65 : 163,405.80 = 49,742.40 : x
  2. Step 2: Convert to fraction form
    108,973.65/163,405.80 = 49,742.40/x
  3. Step 3: Cross multiply
    108,973.65x = 163,405.80 × 49,742.40
  4. Step 4: Simplify right side
    108,973.65x = 8,128,196,665.92
  5. Step 5: Solve for x
    x = 8,128,196,665.92/108,973.65
  6. Step 6: Final answer
    x = 74,588.64

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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.