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Finding the Fourth Proportional to 115,461.76, 158,725.61 and 99,269.44

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Solution

The fourth proportional to 115,461.76, 158,725.61 and 99,269.44 is: 136,465.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,461.76 : 158,725.61 = 99,269.44 : x
  2. Step 2: Convert to fraction form
    115,461.76/158,725.61 = 99,269.44/x
  3. Step 3: Cross multiply
    115,461.76x = 158,725.61 × 99,269.44
  4. Step 4: Simplify right side
    115,461.76x = 15,756,602,418.36
  5. Step 5: Solve for x
    x = 15,756,602,418.36/115,461.76
  6. Step 6: Final answer
    x = 136,465.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.