Home / 106,529.12-147,014.54-61,221.32

Finding the Fourth Proportional to 106,529.12, 147,014.54 and 61,221.32

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Solution

The fourth proportional to 106,529.12, 147,014.54 and 61,221.32 is: 84,487.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,529.12 : 147,014.54 = 61,221.32 : x
  2. Step 2: Convert to fraction form
    106,529.12/147,014.54 = 61,221.32/x
  3. Step 3: Cross multiply
    106,529.12x = 147,014.54 × 61,221.32
  4. Step 4: Simplify right side
    106,529.12x = 9,000,424,282.07
  5. Step 5: Solve for x
    x = 9,000,424,282.07/106,529.12
  6. Step 6: Final answer
    x = 84,487.92

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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.