Home / 120,528.02-166,311.18-66,813

Finding the Fourth Proportional to 120,528.02, 166,311.18 and 66,813

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Solution

The fourth proportional to 120,528.02, 166,311.18 and 66,813 is: 92,192.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,528.02 : 166,311.18 = 66,813 : x
  2. Step 2: Convert to fraction form
    120,528.02/166,311.18 = 66,813/x
  3. Step 3: Cross multiply
    120,528.02x = 166,311.18 × 66,813
  4. Step 4: Simplify right side
    120,528.02x = 11,111,748,869.34
  5. Step 5: Solve for x
    x = 11,111,748,869.34/120,528.02
  6. Step 6: Final answer
    x = 92,192.25

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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.