Home / 112,309.36-154,984.50-61,320.12

Finding the Fourth Proportional to 112,309.36, 154,984.50 and 61,320.12

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Solution

The fourth proportional to 112,309.36, 154,984.50 and 61,320.12 is: 84,620.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,309.36 : 154,984.50 = 61,320.12 : x
  2. Step 2: Convert to fraction form
    112,309.36/154,984.50 = 61,320.12/x
  3. Step 3: Cross multiply
    112,309.36x = 154,984.50 × 61,320.12
  4. Step 4: Simplify right side
    112,309.36x = 9,503,668,138.14
  5. Step 5: Solve for x
    x = 9,503,668,138.14/112,309.36
  6. Step 6: Final answer
    x = 84,620.45

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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.