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Finding the Fourth Proportional to 112,988.84, 169,484.22 and 28,749.08

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Solution

The fourth proportional to 112,988.84, 169,484.22 and 28,749.08 is: 43,123.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,988.84 : 169,484.22 = 28,749.08 : x
  2. Step 2: Convert to fraction form
    112,988.84/169,484.22 = 28,749.08/x
  3. Step 3: Cross multiply
    112,988.84x = 169,484.22 × 28,749.08
  4. Step 4: Simplify right side
    112,988.84x = 4,872,515,399.52
  5. Step 5: Solve for x
    x = 4,872,515,399.52/112,988.84
  6. Step 6: Final answer
    x = 43,123.86

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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.