Home / 112,332.21-155,080.71-76,574.76

Finding the Fourth Proportional to 112,332.21, 155,080.71 and 76,574.76

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Solution

The fourth proportional to 112,332.21, 155,080.71 and 76,574.76 is: 105,715.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,332.21 : 155,080.71 = 76,574.76 : x
  2. Step 2: Convert to fraction form
    112,332.21/155,080.71 = 76,574.76/x
  3. Step 3: Cross multiply
    112,332.21x = 155,080.71 × 76,574.76
  4. Step 4: Simplify right side
    112,332.21x = 11,875,268,148.88
  5. Step 5: Solve for x
    x = 11,875,268,148.88/112,332.21
  6. Step 6: Final answer
    x = 105,715.61

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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.