Home / 108,741.40-163,112.10-100,868.20

Finding the Fourth Proportional to 108,741.40, 163,112.10 and 100,868.20

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Solution

The fourth proportional to 108,741.40, 163,112.10 and 100,868.20 is: 151,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,741.40 : 163,112.10 = 100,868.20 : x
  2. Step 2: Convert to fraction form
    108,741.40/163,112.10 = 100,868.20/x
  3. Step 3: Cross multiply
    108,741.40x = 163,112.10 × 100,868.20
  4. Step 4: Simplify right side
    108,741.40x = 16,452,823,925.22
  5. Step 5: Solve for x
    x = 16,452,823,925.22/108,741.40
  6. Step 6: Final answer
    x = 151,302.30

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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.