Home / 99,054.74-148,576.64-72,428.01

Finding the Fourth Proportional to 99,054.74, 148,576.64 and 72,428.01

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Solution

The fourth proportional to 99,054.74, 148,576.64 and 72,428.01 is: 108,638.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,054.74 : 148,576.64 = 72,428.01 : x
  2. Step 2: Convert to fraction form
    99,054.74/148,576.64 = 72,428.01/x
  3. Step 3: Cross multiply
    99,054.74x = 148,576.64 × 72,428.01
  4. Step 4: Simplify right side
    99,054.74x = 10,761,110,548.76
  5. Step 5: Solve for x
    x = 10,761,110,548.76/99,054.74
  6. Step 6: Final answer
    x = 108,638.02

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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.