Home / 124,828.25-172,220.90-71,075.22

Finding the Fourth Proportional to 124,828.25, 172,220.90 and 71,075.22

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Solution

The fourth proportional to 124,828.25, 172,220.90 and 71,075.22 is: 98,059.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,828.25 : 172,220.90 = 71,075.22 : x
  2. Step 2: Convert to fraction form
    124,828.25/172,220.90 = 71,075.22/x
  3. Step 3: Cross multiply
    124,828.25x = 172,220.90 × 71,075.22
  4. Step 4: Simplify right side
    124,828.25x = 12,240,638,000.72
  5. Step 5: Solve for x
    x = 12,240,638,000.72/124,828.25
  6. Step 6: Final answer
    x = 98,059.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.