Home / 112,444.88-155,172.36-62,142.80

Finding the Fourth Proportional to 112,444.88, 155,172.36 and 62,142.80

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Solution

The fourth proportional to 112,444.88, 155,172.36 and 62,142.80 is: 85,756.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,444.88 : 155,172.36 = 62,142.80 : x
  2. Step 2: Convert to fraction form
    112,444.88/155,172.36 = 62,142.80/x
  3. Step 3: Cross multiply
    112,444.88x = 155,172.36 × 62,142.80
  4. Step 4: Simplify right side
    112,444.88x = 9,642,844,933.01
  5. Step 5: Solve for x
    x = 9,642,844,933.01/112,444.88
  6. Step 6: Final answer
    x = 85,756.19

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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.