Home / 124,782.35-172,205.06-70,352.78

Finding the Fourth Proportional to 124,782.35, 172,205.06 and 70,352.78

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Solution

The fourth proportional to 124,782.35, 172,205.06 and 70,352.78 is: 97,089.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,782.35 : 172,205.06 = 70,352.78 : x
  2. Step 2: Convert to fraction form
    124,782.35/172,205.06 = 70,352.78/x
  3. Step 3: Cross multiply
    124,782.35x = 172,205.06 × 70,352.78
  4. Step 4: Simplify right side
    124,782.35x = 12,115,103,488.28
  5. Step 5: Solve for x
    x = 12,115,103,488.28/124,782.35
  6. Step 6: Final answer
    x = 97,089.88

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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.