Home / 106,548.12-159,849.86-87,603.98

Finding the Fourth Proportional to 106,548.12, 159,849.86 and 87,603.98

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Solution

The fourth proportional to 106,548.12, 159,849.86 and 87,603.98 is: 131,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,548.12 : 159,849.86 = 87,603.98 : x
  2. Step 2: Convert to fraction form
    106,548.12/159,849.86 = 87,603.98/x
  3. Step 3: Cross multiply
    106,548.12x = 159,849.86 × 87,603.98
  4. Step 4: Simplify right side
    106,548.12x = 14,003,482,701.17
  5. Step 5: Solve for x
    x = 14,003,482,701.17/106,548.12
  6. Step 6: Final answer
    x = 131,428.72

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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.