Home / 118,727.04-178,031.04-66,172.80

Finding the Fourth Proportional to 118,727.04, 178,031.04 and 66,172.80

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Solution

The fourth proportional to 118,727.04, 178,031.04 and 66,172.80 is: 99,226.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,727.04 : 178,031.04 = 66,172.80 : x
  2. Step 2: Convert to fraction form
    118,727.04/178,031.04 = 66,172.80/x
  3. Step 3: Cross multiply
    118,727.04x = 178,031.04 × 66,172.80
  4. Step 4: Simplify right side
    118,727.04x = 11,780,812,403.71
  5. Step 5: Solve for x
    x = 11,780,812,403.71/118,727.04
  6. Step 6: Final answer
    x = 99,226.03

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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.