Home / 372,128.40-558,192.60-105,862.80

Finding the Fourth Proportional to 372,128.40, 558,192.60 and 105,862.80

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Solution

The fourth proportional to 372,128.40, 558,192.60 and 105,862.80 is: 158,794.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,128.40 : 558,192.60 = 105,862.80 : x
  2. Step 2: Convert to fraction form
    372,128.40/558,192.60 = 105,862.80/x
  3. Step 3: Cross multiply
    372,128.40x = 558,192.60 × 105,862.80
  4. Step 4: Simplify right side
    372,128.40x = 59,091,831,575.28
  5. Step 5: Solve for x
    x = 59,091,831,575.28/372,128.40
  6. Step 6: Final answer
    x = 158,794.20

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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.