Home / 187,095.60-280,643.40-140,439.60

Finding the Fourth Proportional to 187,095.60, 280,643.40 and 140,439.60

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Solution

The fourth proportional to 187,095.60, 280,643.40 and 140,439.60 is: 210,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,095.60 : 280,643.40 = 140,439.60 : x
  2. Step 2: Convert to fraction form
    187,095.60/280,643.40 = 140,439.60/x
  3. Step 3: Cross multiply
    187,095.60x = 280,643.40 × 140,439.60
  4. Step 4: Simplify right side
    187,095.60x = 39,413,446,838.64
  5. Step 5: Solve for x
    x = 39,413,446,838.64/187,095.60
  6. Step 6: Final answer
    x = 210,659.40

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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.