Home / 91,222.44-136,833.60-66,420.30

Finding the Fourth Proportional to 91,222.44, 136,833.60 and 66,420.30

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Solution

The fourth proportional to 91,222.44, 136,833.60 and 66,420.30 is: 99,630.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,222.44 : 136,833.60 = 66,420.30 : x
  2. Step 2: Convert to fraction form
    91,222.44/136,833.60 = 66,420.30/x
  3. Step 3: Cross multiply
    91,222.44x = 136,833.60 × 66,420.30
  4. Step 4: Simplify right side
    91,222.44x = 9,088,528,762.08
  5. Step 5: Solve for x
    x = 9,088,528,762.08/91,222.44
  6. Step 6: Final answer
    x = 99,630.41

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1.5x scale

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.