Home / 186,931.76-257,966.90-102,049.70

Finding the Fourth Proportional to 186,931.76, 257,966.90 and 102,049.70

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Solution

The fourth proportional to 186,931.76, 257,966.90 and 102,049.70 is: 140,829.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,931.76 : 257,966.90 = 102,049.70 : x
  2. Step 2: Convert to fraction form
    186,931.76/257,966.90 = 102,049.70/x
  3. Step 3: Cross multiply
    186,931.76x = 257,966.90 × 102,049.70
  4. Step 4: Simplify right side
    186,931.76x = 26,325,444,754.93
  5. Step 5: Solve for x
    x = 26,325,444,754.93/186,931.76
  6. Step 6: Final answer
    x = 140,829.17

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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.