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Finding the Fourth Proportional to 130,674.70, 180,330.30 and 72,530.84

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Solution

The fourth proportional to 130,674.70, 180,330.30 and 72,530.84 is: 100,092.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,674.70 : 180,330.30 = 72,530.84 : x
  2. Step 2: Convert to fraction form
    130,674.70/180,330.30 = 72,530.84/x
  3. Step 3: Cross multiply
    130,674.70x = 180,330.30 × 72,530.84
  4. Step 4: Simplify right side
    130,674.70x = 13,079,508,587.28
  5. Step 5: Solve for x
    x = 13,079,508,587.28/130,674.70
  6. Step 6: Final answer
    x = 100,092.13

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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.