Home / 107,719.98-148,332.59-105,330.22

Finding the Fourth Proportional to 107,719.98, 148,332.59 and 105,330.22

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Solution

The fourth proportional to 107,719.98, 148,332.59 and 105,330.22 is: 145,041.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,719.98 : 148,332.59 = 105,330.22 : x
  2. Step 2: Convert to fraction form
    107,719.98/148,332.59 = 105,330.22/x
  3. Step 3: Cross multiply
    107,719.98x = 148,332.59 × 105,330.22
  4. Step 4: Simplify right side
    107,719.98x = 15,623,904,965.99
  5. Step 5: Solve for x
    x = 15,623,904,965.99/107,719.98
  6. Step 6: Final answer
    x = 145,041.85

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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.