Home / 107,221.02-147,971.71-61,907.29

Finding the Fourth Proportional to 107,221.02, 147,971.71 and 61,907.29

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Solution

The fourth proportional to 107,221.02, 147,971.71 and 61,907.29 is: 85,435.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,221.02 : 147,971.71 = 61,907.29 : x
  2. Step 2: Convert to fraction form
    107,221.02/147,971.71 = 61,907.29/x
  3. Step 3: Cross multiply
    107,221.02x = 147,971.71 × 61,907.29
  4. Step 4: Simplify right side
    107,221.02x = 9,160,527,562.77
  5. Step 5: Solve for x
    x = 9,160,527,562.77/107,221.02
  6. Step 6: Final answer
    x = 85,435.93

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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.