Home / 112,646.21-155,441.24-67,315.19

Finding the Fourth Proportional to 112,646.21, 155,441.24 and 67,315.19

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Solution

The fourth proportional to 112,646.21, 155,441.24 and 67,315.19 is: 92,888.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,646.21 : 155,441.24 = 67,315.19 : x
  2. Step 2: Convert to fraction form
    112,646.21/155,441.24 = 67,315.19/x
  3. Step 3: Cross multiply
    112,646.21x = 155,441.24 × 67,315.19
  4. Step 4: Simplify right side
    112,646.21x = 10,463,556,267.86
  5. Step 5: Solve for x
    x = 10,463,556,267.86/112,646.21
  6. Step 6: Final answer
    x = 92,888.67

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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.