Home / 160,638.50-221,685.99-89,011.82

Finding the Fourth Proportional to 160,638.50, 221,685.99 and 89,011.82

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Solution

The fourth proportional to 160,638.50, 221,685.99 and 89,011.82 is: 122,839.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,638.50 : 221,685.99 = 89,011.82 : x
  2. Step 2: Convert to fraction form
    160,638.50/221,685.99 = 89,011.82/x
  3. Step 3: Cross multiply
    160,638.50x = 221,685.99 × 89,011.82
  4. Step 4: Simplify right side
    160,638.50x = 19,732,673,438.40
  5. Step 5: Solve for x
    x = 19,732,673,438.40/160,638.50
  6. Step 6: Final answer
    x = 122,839.00

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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.