Home / 112,031.40-167,561.10-100,270.20

Finding the Fourth Proportional to 112,031.40, 167,561.10 and 100,270.20

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Solution

The fourth proportional to 112,031.40, 167,561.10 and 100,270.20 is: 149,970.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,031.40 : 167,561.10 = 100,270.20 : x
  2. Step 2: Convert to fraction form
    112,031.40/167,561.10 = 100,270.20/x
  3. Step 3: Cross multiply
    112,031.40x = 167,561.10 × 100,270.20
  4. Step 4: Simplify right side
    112,031.40x = 16,801,385,009.22
  5. Step 5: Solve for x
    x = 16,801,385,009.22/112,031.40
  6. Step 6: Final answer
    x = 149,970.32

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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.