Home / 121,677.02-167,912.50-67,962.80

Finding the Fourth Proportional to 121,677.02, 167,912.50 and 67,962.80

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Solution

The fourth proportional to 121,677.02, 167,912.50 and 67,962.80 is: 93,787.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,677.02 : 167,912.50 = 67,962.80 : x
  2. Step 2: Convert to fraction form
    121,677.02/167,912.50 = 67,962.80/x
  3. Step 3: Cross multiply
    121,677.02x = 167,912.50 × 67,962.80
  4. Step 4: Simplify right side
    121,677.02x = 11,411,803,655
  5. Step 5: Solve for x
    x = 11,411,803,655/121,677.02
  6. Step 6: Final answer
    x = 93,787.67

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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.