Home / 124,002.74-171,140.37-79,420.34

Finding the Fourth Proportional to 124,002.74, 171,140.37 and 79,420.34

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Solution

The fourth proportional to 124,002.74, 171,140.37 and 79,420.34 is: 109,610.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,002.74 : 171,140.37 = 79,420.34 : x
  2. Step 2: Convert to fraction form
    124,002.74/171,140.37 = 79,420.34/x
  3. Step 3: Cross multiply
    124,002.74x = 171,140.37 × 79,420.34
  4. Step 4: Simplify right side
    124,002.74x = 13,592,026,373.13
  5. Step 5: Solve for x
    x = 13,592,026,373.13/124,002.74
  6. Step 6: Final answer
    x = 109,610.69

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1.5x scale

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.