Home / 112,748.13-155,533.43-69,713.87

Finding the Fourth Proportional to 112,748.13, 155,533.43 and 69,713.87

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Solution

The fourth proportional to 112,748.13, 155,533.43 and 69,713.87 is: 96,168.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,748.13 : 155,533.43 = 69,713.87 : x
  2. Step 2: Convert to fraction form
    112,748.13/155,533.43 = 69,713.87/x
  3. Step 3: Cross multiply
    112,748.13x = 155,533.43 × 69,713.87
  4. Step 4: Simplify right side
    112,748.13x = 10,842,837,319.67
  5. Step 5: Solve for x
    x = 10,842,837,319.67/112,748.13
  6. Step 6: Final answer
    x = 96,168.67

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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.