Home / 142,110.80-213,166.20-99,717.20

Finding the Fourth Proportional to 142,110.80, 213,166.20 and 99,717.20

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Solution

The fourth proportional to 142,110.80, 213,166.20 and 99,717.20 is: 149,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,110.80 : 213,166.20 = 99,717.20 : x
  2. Step 2: Convert to fraction form
    142,110.80/213,166.20 = 99,717.20/x
  3. Step 3: Cross multiply
    142,110.80x = 213,166.20 × 99,717.20
  4. Step 4: Simplify right side
    142,110.80x = 21,256,336,598.64
  5. Step 5: Solve for x
    x = 21,256,336,598.64/142,110.80
  6. Step 6: Final answer
    x = 149,575.80

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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.