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Finding the Fourth Proportional to 136,031.04, 187,722 and 75,600.72

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Solution

The fourth proportional to 136,031.04, 187,722 and 75,600.72 is: 104,328.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,031.04 : 187,722 = 75,600.72 : x
  2. Step 2: Convert to fraction form
    136,031.04/187,722 = 75,600.72/x
  3. Step 3: Cross multiply
    136,031.04x = 187,722 × 75,600.72
  4. Step 4: Simplify right side
    136,031.04x = 14,191,918,359.84
  5. Step 5: Solve for x
    x = 14,191,918,359.84/136,031.04
  6. Step 6: Final answer
    x = 104,328.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.