Home / 187,061.21-280,633.27-53,931.08

Finding the Fourth Proportional to 187,061.21, 280,633.27 and 53,931.08

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Solution

The fourth proportional to 187,061.21, 280,633.27 and 53,931.08 is: 80,908.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,061.21 : 280,633.27 = 53,931.08 : x
  2. Step 2: Convert to fraction form
    187,061.21/280,633.27 = 53,931.08/x
  3. Step 3: Cross multiply
    187,061.21x = 280,633.27 × 53,931.08
  4. Step 4: Simplify right side
    187,061.21x = 15,134,853,999.28
  5. Step 5: Solve for x
    x = 15,134,853,999.28/187,061.21
  6. Step 6: Final answer
    x = 80,908.57

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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.