Home / 112,942.19-155,860.46-61,955.34

Finding the Fourth Proportional to 112,942.19, 155,860.46 and 61,955.34

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Solution

The fourth proportional to 112,942.19, 155,860.46 and 61,955.34 is: 85,498.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,942.19 : 155,860.46 = 61,955.34 : x
  2. Step 2: Convert to fraction form
    112,942.19/155,860.46 = 61,955.34/x
  3. Step 3: Cross multiply
    112,942.19x = 155,860.46 × 61,955.34
  4. Step 4: Simplify right side
    112,942.19x = 9,656,387,897.99
  5. Step 5: Solve for x
    x = 9,656,387,897.99/112,942.19
  6. Step 6: Final answer
    x = 85,498.50

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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.