Home / 186,931.76-257,966.88-102,049.68

Finding the Fourth Proportional to 186,931.76, 257,966.88 and 102,049.68

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Solution

The fourth proportional to 186,931.76, 257,966.88 and 102,049.68 is: 140,829.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,931.76 : 257,966.88 = 102,049.68 : x
  2. Step 2: Convert to fraction form
    186,931.76/257,966.88 = 102,049.68/x
  3. Step 3: Cross multiply
    186,931.76x = 257,966.88 × 102,049.68
  4. Step 4: Simplify right side
    186,931.76x = 26,325,437,554.60
  5. Step 5: Solve for x
    x = 26,325,437,554.60/186,931.76
  6. Step 6: Final answer
    x = 140,829.13

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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.