Home / 112,280.85-154,953.41-64,538.64

Finding the Fourth Proportional to 112,280.85, 154,953.41 and 64,538.64

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Solution

The fourth proportional to 112,280.85, 154,953.41 and 64,538.64 is: 89,066.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,280.85 : 154,953.41 = 64,538.64 : x
  2. Step 2: Convert to fraction form
    112,280.85/154,953.41 = 64,538.64/x
  3. Step 3: Cross multiply
    112,280.85x = 154,953.41 × 64,538.64
  4. Step 4: Simplify right side
    112,280.85x = 10,000,482,022.07
  5. Step 5: Solve for x
    x = 10,000,482,022.07/112,280.85
  6. Step 6: Final answer
    x = 89,066.68

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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.