Home / 106,152.81-146,489.75-57,756.21

Finding the Fourth Proportional to 106,152.81, 146,489.75 and 57,756.21

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Solution

The fourth proportional to 106,152.81, 146,489.75 and 57,756.21 is: 79,702.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,152.81 : 146,489.75 = 57,756.21 : x
  2. Step 2: Convert to fraction form
    106,152.81/146,489.75 = 57,756.21/x
  3. Step 3: Cross multiply
    106,152.81x = 146,489.75 × 57,756.21
  4. Step 4: Simplify right side
    106,152.81x = 8,460,692,475.07
  5. Step 5: Solve for x
    x = 8,460,692,475.07/106,152.81
  6. Step 6: Final answer
    x = 79,702.95

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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.