Home / 127,210.29-190,862.21-52,310.40

Finding the Fourth Proportional to 127,210.29, 190,862.21 and 52,310.40

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Solution

The fourth proportional to 127,210.29, 190,862.21 and 52,310.40 is: 78,484.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,210.29 : 190,862.21 = 52,310.40 : x
  2. Step 2: Convert to fraction form
    127,210.29/190,862.21 = 52,310.40/x
  3. Step 3: Cross multiply
    127,210.29x = 190,862.21 × 52,310.40
  4. Step 4: Simplify right side
    127,210.29x = 9,984,078,549.98
  5. Step 5: Solve for x
    x = 9,984,078,549.98/127,210.29
  6. Step 6: Final answer
    x = 78,484.83

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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.