Home / 132,647.02-183,056.43-72,220.21

Finding the Fourth Proportional to 132,647.02, 183,056.43 and 72,220.21

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Solution

The fourth proportional to 132,647.02, 183,056.43 and 72,220.21 is: 99,665.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,647.02 : 183,056.43 = 72,220.21 : x
  2. Step 2: Convert to fraction form
    132,647.02/183,056.43 = 72,220.21/x
  3. Step 3: Cross multiply
    132,647.02x = 183,056.43 × 72,220.21
  4. Step 4: Simplify right side
    132,647.02x = 13,220,373,816.45
  5. Step 5: Solve for x
    x = 13,220,373,816.45/132,647.02
  6. Step 6: Final answer
    x = 99,665.82

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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.