Home / 128,059.11-192,047.13-42,647.22

Finding the Fourth Proportional to 128,059.11, 192,047.13 and 42,647.22

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Solution

The fourth proportional to 128,059.11, 192,047.13 and 42,647.22 is: 63,957.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,059.11 : 192,047.13 = 42,647.22 : x
  2. Step 2: Convert to fraction form
    128,059.11/192,047.13 = 42,647.22/x
  3. Step 3: Cross multiply
    128,059.11x = 192,047.13 × 42,647.22
  4. Step 4: Simplify right side
    128,059.11x = 8,190,276,203.48
  5. Step 5: Solve for x
    x = 8,190,276,203.48/128,059.11
  6. Step 6: Final answer
    x = 63,957.00

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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.