Home / 187,143.28-280,904.15-165,931.81

Finding the Fourth Proportional to 187,143.28, 280,904.15 and 165,931.81

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Solution

The fourth proportional to 187,143.28, 280,904.15 and 165,931.81 is: 249,065.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,143.28 : 280,904.15 = 165,931.81 : x
  2. Step 2: Convert to fraction form
    187,143.28/280,904.15 = 165,931.81/x
  3. Step 3: Cross multiply
    187,143.28x = 280,904.15 × 165,931.81
  4. Step 4: Simplify right side
    187,143.28x = 46,610,933,758.58
  5. Step 5: Solve for x
    x = 46,610,933,758.58/187,143.28
  6. Step 6: Final answer
    x = 249,065.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.