Home / 187,250.09-280,630.51-86,011.43

Finding the Fourth Proportional to 187,250.09, 280,630.51 and 86,011.43

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Solution

The fourth proportional to 187,250.09, 280,630.51 and 86,011.43 is: 128,904.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,250.09 : 280,630.51 = 86,011.43 : x
  2. Step 2: Convert to fraction form
    187,250.09/280,630.51 = 86,011.43/x
  3. Step 3: Cross multiply
    187,250.09x = 280,630.51 × 86,011.43
  4. Step 4: Simplify right side
    187,250.09x = 24,137,429,848.55
  5. Step 5: Solve for x
    x = 24,137,429,848.55/187,250.09
  6. Step 6: Final answer
    x = 128,904.77

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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.