Home / 118,987.03-178,423.53-69,080.91

Finding the Fourth Proportional to 118,987.03, 178,423.53 and 69,080.91

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Solution

The fourth proportional to 118,987.03, 178,423.53 and 69,080.91 is: 103,588.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,987.03 : 178,423.53 = 69,080.91 : x
  2. Step 2: Convert to fraction form
    118,987.03/178,423.53 = 69,080.91/x
  3. Step 3: Cross multiply
    118,987.03x = 178,423.53 × 69,080.91
  4. Step 4: Simplify right side
    118,987.03x = 12,325,658,925.69
  5. Step 5: Solve for x
    x = 12,325,658,925.69/118,987.03
  6. Step 6: Final answer
    x = 103,588.26

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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.