Home / 139,541.49-192,572.33-79,937.01

Finding the Fourth Proportional to 139,541.49, 192,572.33 and 79,937.01

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Solution

The fourth proportional to 139,541.49, 192,572.33 and 79,937.01 is: 110,315.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,541.49 : 192,572.33 = 79,937.01 : x
  2. Step 2: Convert to fraction form
    139,541.49/192,572.33 = 79,937.01/x
  3. Step 3: Cross multiply
    139,541.49x = 192,572.33 × 79,937.01
  4. Step 4: Simplify right side
    139,541.49x = 15,393,655,869.25
  5. Step 5: Solve for x
    x = 15,393,655,869.25/139,541.49
  6. Step 6: Final answer
    x = 110,315.98

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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.