Home / 118,931.60-178,397.40-40,039.22

Finding the Fourth Proportional to 118,931.60, 178,397.40 and 40,039.22

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Solution

The fourth proportional to 118,931.60, 178,397.40 and 40,039.22 is: 60,058.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,931.60 : 178,397.40 = 40,039.22 : x
  2. Step 2: Convert to fraction form
    118,931.60/178,397.40 = 40,039.22/x
  3. Step 3: Cross multiply
    118,931.60x = 178,397.40 × 40,039.22
  4. Step 4: Simplify right side
    118,931.60x = 7,142,892,746.03
  5. Step 5: Solve for x
    x = 7,142,892,746.03/118,931.60
  6. Step 6: Final answer
    x = 60,058.83

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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.