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Finding the Fourth Proportional to 136,130.02, 187,863.72 and 75,703.22

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Solution

The fourth proportional to 136,130.02, 187,863.72 and 75,703.22 is: 104,472.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,130.02 : 187,863.72 = 75,703.22 : x
  2. Step 2: Convert to fraction form
    136,130.02/187,863.72 = 75,703.22/x
  3. Step 3: Cross multiply
    136,130.02x = 187,863.72 × 75,703.22
  4. Step 4: Simplify right side
    136,130.02x = 14,221,888,525.18
  5. Step 5: Solve for x
    x = 14,221,888,525.18/136,130.02
  6. Step 6: Final answer
    x = 104,472.83

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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.