Home / 112,521.48-155,318.74-64,793.84

Finding the Fourth Proportional to 112,521.48, 155,318.74 and 64,793.84

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Solution

The fourth proportional to 112,521.48, 155,318.74 and 64,793.84 is: 89,438.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,521.48 : 155,318.74 = 64,793.84 : x
  2. Step 2: Convert to fraction form
    112,521.48/155,318.74 = 64,793.84/x
  3. Step 3: Cross multiply
    112,521.48x = 155,318.74 × 64,793.84
  4. Step 4: Simplify right side
    112,521.48x = 10,063,697,588.56
  5. Step 5: Solve for x
    x = 10,063,697,588.56/112,521.48
  6. Step 6: Final answer
    x = 89,438.01

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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.