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Finding the Fourth Proportional to 187,035.51, 280,647.12 and 87,203.52

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Solution

The fourth proportional to 187,035.51, 280,647.12 and 87,203.52 is: 130,849.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,035.51 : 280,647.12 = 87,203.52 : x
  2. Step 2: Convert to fraction form
    187,035.51/280,647.12 = 87,203.52/x
  3. Step 3: Cross multiply
    187,035.51x = 280,647.12 × 87,203.52
  4. Step 4: Simplify right side
    187,035.51x = 24,473,416,741.86
  5. Step 5: Solve for x
    x = 24,473,416,741.86/187,035.51
  6. Step 6: Final answer
    x = 130,849.04

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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.