Home / 147,810.30-221,715.45-54,303.90

Finding the Fourth Proportional to 147,810.30, 221,715.45 and 54,303.90

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Solution

The fourth proportional to 147,810.30, 221,715.45 and 54,303.90 is: 81,455.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,810.30 : 221,715.45 = 54,303.90 : x
  2. Step 2: Convert to fraction form
    147,810.30/221,715.45 = 54,303.90/x
  3. Step 3: Cross multiply
    147,810.30x = 221,715.45 × 54,303.90
  4. Step 4: Simplify right side
    147,810.30x = 12,040,013,625.26
  5. Step 5: Solve for x
    x = 12,040,013,625.26/147,810.30
  6. Step 6: Final answer
    x = 81,455.85

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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.