Home / 118,901.40-178,370.56-40,009.48

Finding the Fourth Proportional to 118,901.40, 178,370.56 and 40,009.48

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Solution

The fourth proportional to 118,901.40, 178,370.56 and 40,009.48 is: 60,020.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,901.40 : 178,370.56 = 40,009.48 : x
  2. Step 2: Convert to fraction form
    118,901.40/178,370.56 = 40,009.48/x
  3. Step 3: Cross multiply
    118,901.40x = 178,370.56 × 40,009.48
  4. Step 4: Simplify right side
    118,901.40x = 7,136,513,352.91
  5. Step 5: Solve for x
    x = 7,136,513,352.91/118,901.40
  6. Step 6: Final answer
    x = 60,020.43

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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.