Home / 99,037.80-136,725.28-76,493.48

Finding the Fourth Proportional to 99,037.80, 136,725.28 and 76,493.48

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Solution

The fourth proportional to 99,037.80, 136,725.28 and 76,493.48 is: 105,602.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,037.80 : 136,725.28 = 76,493.48 : x
  2. Step 2: Convert to fraction form
    99,037.80/136,725.28 = 76,493.48/x
  3. Step 3: Cross multiply
    99,037.80x = 136,725.28 × 76,493.48
  4. Step 4: Simplify right side
    99,037.80x = 10,458,592,471.17
  5. Step 5: Solve for x
    x = 10,458,592,471.17/99,037.80
  6. Step 6: Final answer
    x = 105,602.03

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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.