Home / 153,074.85-211,277.55-85,115.67

Finding the Fourth Proportional to 153,074.85, 211,277.55 and 85,115.67

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Solution

The fourth proportional to 153,074.85, 211,277.55 and 85,115.67 is: 117,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,074.85 : 211,277.55 = 85,115.67 : x
  2. Step 2: Convert to fraction form
    153,074.85/211,277.55 = 85,115.67/x
  3. Step 3: Cross multiply
    153,074.85x = 211,277.55 × 85,115.67
  4. Step 4: Simplify right side
    153,074.85x = 17,983,030,224.21
  5. Step 5: Solve for x
    x = 17,983,030,224.21/153,074.85
  6. Step 6: Final answer
    x = 117,478.67

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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.