Home / 139,237.10-192,146.55-75,574.34

Finding the Fourth Proportional to 139,237.10, 192,146.55 and 75,574.34

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Solution

The fourth proportional to 139,237.10, 192,146.55 and 75,574.34 is: 104,292.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,237.10 : 192,146.55 = 75,574.34 : x
  2. Step 2: Convert to fraction form
    139,237.10/192,146.55 = 75,574.34/x
  3. Step 3: Cross multiply
    139,237.10x = 192,146.55 × 75,574.34
  4. Step 4: Simplify right side
    139,237.10x = 14,521,348,699.53
  5. Step 5: Solve for x
    x = 14,521,348,699.53/139,237.10
  6. Step 6: Final answer
    x = 104,292.24

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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.