Home / 160,420.50-221,438.70-93,352.50

Finding the Fourth Proportional to 160,420.50, 221,438.70 and 93,352.50

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Solution

The fourth proportional to 160,420.50, 221,438.70 and 93,352.50 is: 128,860.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,420.50 : 221,438.70 = 93,352.50 : x
  2. Step 2: Convert to fraction form
    160,420.50/221,438.70 = 93,352.50/x
  3. Step 3: Cross multiply
    160,420.50x = 221,438.70 × 93,352.50
  4. Step 4: Simplify right side
    160,420.50x = 20,671,856,241.75
  5. Step 5: Solve for x
    x = 20,671,856,241.75/160,420.50
  6. Step 6: Final answer
    x = 128,860.44

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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.