Home / 118,990.04-164,243.02-76,548.60

Finding the Fourth Proportional to 118,990.04, 164,243.02 and 76,548.60

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Solution

The fourth proportional to 118,990.04, 164,243.02 and 76,548.60 is: 105,660.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,990.04 : 164,243.02 = 76,548.60 : x
  2. Step 2: Convert to fraction form
    118,990.04/164,243.02 = 76,548.60/x
  3. Step 3: Cross multiply
    118,990.04x = 164,243.02 × 76,548.60
  4. Step 4: Simplify right side
    118,990.04x = 12,572,573,240.77
  5. Step 5: Solve for x
    x = 12,572,573,240.77/118,990.04
  6. Step 6: Final answer
    x = 105,660.72

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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.