Home / 214,190.29-321,283.05-87,802.30

Finding the Fourth Proportional to 214,190.29, 321,283.05 and 87,802.30

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Solution

The fourth proportional to 214,190.29, 321,283.05 and 87,802.30 is: 131,702.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,190.29 : 321,283.05 = 87,802.30 : x
  2. Step 2: Convert to fraction form
    214,190.29/321,283.05 = 87,802.30/x
  3. Step 3: Cross multiply
    214,190.29x = 321,283.05 × 87,802.30
  4. Step 4: Simplify right side
    214,190.29x = 28,209,390,741.02
  5. Step 5: Solve for x
    x = 28,209,390,741.02/214,190.29
  6. Step 6: Final answer
    x = 131,702.47

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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.