Home / 166,038.90-229,136.31-90,587.40

Finding the Fourth Proportional to 166,038.90, 229,136.31 and 90,587.40

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Solution

The fourth proportional to 166,038.90, 229,136.31 and 90,587.40 is: 125,012.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,038.90 : 229,136.31 = 90,587.40 : x
  2. Step 2: Convert to fraction form
    166,038.90/229,136.31 = 90,587.40/x
  3. Step 3: Cross multiply
    166,038.90x = 229,136.31 × 90,587.40
  4. Step 4: Simplify right side
    166,038.90x = 20,756,862,568.49
  5. Step 5: Solve for x
    x = 20,756,862,568.49/166,038.90
  6. Step 6: Final answer
    x = 125,012.05

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1.5x scale

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.