Home / 166,140.16-249,223.38-81,854.35

Finding the Fourth Proportional to 166,140.16, 249,223.38 and 81,854.35

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Solution

The fourth proportional to 166,140.16, 249,223.38 and 81,854.35 is: 122,787.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,140.16 : 249,223.38 = 81,854.35 : x
  2. Step 2: Convert to fraction form
    166,140.16/249,223.38 = 81,854.35/x
  3. Step 3: Cross multiply
    166,140.16x = 249,223.38 × 81,854.35
  4. Step 4: Simplify right side
    166,140.16x = 20,400,017,305.12
  5. Step 5: Solve for x
    x = 20,400,017,305.12/166,140.16
  6. Step 6: Final answer
    x = 122,787.99

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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.