Home / 155,060.13-213,982.98-87,077.16

Finding the Fourth Proportional to 155,060.13, 213,982.98 and 87,077.16

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Solution

The fourth proportional to 155,060.13, 213,982.98 and 87,077.16 is: 120,166.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,060.13 : 213,982.98 = 87,077.16 : x
  2. Step 2: Convert to fraction form
    155,060.13/213,982.98 = 87,077.16/x
  3. Step 3: Cross multiply
    155,060.13x = 213,982.98 × 87,077.16
  4. Step 4: Simplify right side
    155,060.13x = 18,633,030,186.74
  5. Step 5: Solve for x
    x = 18,633,030,186.74/155,060.13
  6. Step 6: Final answer
    x = 120,166.48

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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.