Home / 118,885.20-164,041.16-71,136.40

Finding the Fourth Proportional to 118,885.20, 164,041.16 and 71,136.40

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Solution

The fourth proportional to 118,885.20, 164,041.16 and 71,136.40 is: 98,156.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,885.20 : 164,041.16 = 71,136.40 : x
  2. Step 2: Convert to fraction form
    118,885.20/164,041.16 = 71,136.40/x
  3. Step 3: Cross multiply
    118,885.20x = 164,041.16 × 71,136.40
  4. Step 4: Simplify right side
    118,885.20x = 11,669,297,574.22
  5. Step 5: Solve for x
    x = 11,669,297,574.22/118,885.20
  6. Step 6: Final answer
    x = 98,156.02

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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.