Home / 139,629.03-192,688.52-75,966.81

Finding the Fourth Proportional to 139,629.03, 192,688.52 and 75,966.81

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Solution

The fourth proportional to 139,629.03, 192,688.52 and 75,966.81 is: 104,834.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,629.03 : 192,688.52 = 75,966.81 : x
  2. Step 2: Convert to fraction form
    139,629.03/192,688.52 = 75,966.81/x
  3. Step 3: Cross multiply
    139,629.03x = 192,688.52 × 75,966.81
  4. Step 4: Simplify right side
    139,629.03x = 14,637,931,808.19
  5. Step 5: Solve for x
    x = 14,637,931,808.19/139,629.03
  6. Step 6: Final answer
    x = 104,834.44

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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.