Home / 144,116.16-216,070.68-68,172.60

Finding the Fourth Proportional to 144,116.16, 216,070.68 and 68,172.60

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Solution

The fourth proportional to 144,116.16, 216,070.68 and 68,172.60 is: 102,209.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,116.16 : 216,070.68 = 68,172.60 : x
  2. Step 2: Convert to fraction form
    144,116.16/216,070.68 = 68,172.60/x
  3. Step 3: Cross multiply
    144,116.16x = 216,070.68 × 68,172.60
  4. Step 4: Simplify right side
    144,116.16x = 14,730,100,039.37
  5. Step 5: Solve for x
    x = 14,730,100,039.37/144,116.16
  6. Step 6: Final answer
    x = 102,209.91

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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.