Home / 109,456.45-151,050.08-61,709.67

Finding the Fourth Proportional to 109,456.45, 151,050.08 and 61,709.67

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Solution

The fourth proportional to 109,456.45, 151,050.08 and 61,709.67 is: 85,159.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,456.45 : 151,050.08 = 61,709.67 : x
  2. Step 2: Convert to fraction form
    109,456.45/151,050.08 = 61,709.67/x
  3. Step 3: Cross multiply
    109,456.45x = 151,050.08 × 61,709.67
  4. Step 4: Simplify right side
    109,456.45x = 9,321,250,744.55
  5. Step 5: Solve for x
    x = 9,321,250,744.55/109,456.45
  6. Step 6: Final answer
    x = 85,159.45

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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.