Home / 207,729.64-286,903.36-139,628.38

Finding the Fourth Proportional to 207,729.64, 286,903.36 and 139,628.38

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Solution

The fourth proportional to 207,729.64, 286,903.36 and 139,628.38 is: 192,846.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,729.64 : 286,903.36 = 139,628.38 : x
  2. Step 2: Convert to fraction form
    207,729.64/286,903.36 = 139,628.38/x
  3. Step 3: Cross multiply
    207,729.64x = 286,903.36 × 139,628.38
  4. Step 4: Simplify right side
    207,729.64x = 40,059,851,373.36
  5. Step 5: Solve for x
    x = 40,059,851,373.36/207,729.64
  6. Step 6: Final answer
    x = 192,846.10

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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.