Home / 108,701.10-163,051.65-91,205.10

Finding the Fourth Proportional to 108,701.10, 163,051.65 and 91,205.10

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Solution

The fourth proportional to 108,701.10, 163,051.65 and 91,205.10 is: 136,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,701.10 : 163,051.65 = 91,205.10 : x
  2. Step 2: Convert to fraction form
    108,701.10/163,051.65 = 91,205.10/x
  3. Step 3: Cross multiply
    108,701.10x = 163,051.65 × 91,205.10
  4. Step 4: Simplify right side
    108,701.10x = 14,871,142,043.42
  5. Step 5: Solve for x
    x = 14,871,142,043.42/108,701.10
  6. Step 6: Final answer
    x = 136,807.65

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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.