Home / 124,830.40-187,245.60-118,415.20

Finding the Fourth Proportional to 124,830.40, 187,245.60 and 118,415.20

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Solution

The fourth proportional to 124,830.40, 187,245.60 and 118,415.20 is: 177,622.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,830.40 : 187,245.60 = 118,415.20 : x
  2. Step 2: Convert to fraction form
    124,830.40/187,245.60 = 118,415.20/x
  3. Step 3: Cross multiply
    124,830.40x = 187,245.60 × 118,415.20
  4. Step 4: Simplify right side
    124,830.40x = 22,172,725,173.12
  5. Step 5: Solve for x
    x = 22,172,725,173.12/124,830.40
  6. Step 6: Final answer
    x = 177,622.80

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1.5x scale

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.