Home / 99,263.15-148,903.64-28,186.48

Finding the Fourth Proportional to 99,263.15, 148,903.64 and 28,186.48

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Solution

The fourth proportional to 99,263.15, 148,903.64 and 28,186.48 is: 42,282.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,263.15 : 148,903.64 = 28,186.48 : x
  2. Step 2: Convert to fraction form
    99,263.15/148,903.64 = 28,186.48/x
  3. Step 3: Cross multiply
    99,263.15x = 148,903.64 × 28,186.48
  4. Step 4: Simplify right side
    99,263.15x = 4,197,069,700.96
  5. Step 5: Solve for x
    x = 4,197,069,700.96/99,263.15
  6. Step 6: Final answer
    x = 42,282.26

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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.