Home / 112,929.75-155,842.64-69,900.68

Finding the Fourth Proportional to 112,929.75, 155,842.64 and 69,900.68

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Solution

The fourth proportional to 112,929.75, 155,842.64 and 69,900.68 is: 96,462.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,929.75 : 155,842.64 = 69,900.68 : x
  2. Step 2: Convert to fraction form
    112,929.75/155,842.64 = 69,900.68/x
  3. Step 3: Cross multiply
    112,929.75x = 155,842.64 × 69,900.68
  4. Step 4: Simplify right side
    112,929.75x = 10,893,506,509.00
  5. Step 5: Solve for x
    x = 10,893,506,509.00/112,929.75
  6. Step 6: Final answer
    x = 96,462.68

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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.