Home / 111,129.48-153,352.80-60,818.76

Finding the Fourth Proportional to 111,129.48, 153,352.80 and 60,818.76

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Solution

The fourth proportional to 111,129.48, 153,352.80 and 60,818.76 is: 83,926.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,129.48 : 153,352.80 = 60,818.76 : x
  2. Step 2: Convert to fraction form
    111,129.48/153,352.80 = 60,818.76/x
  3. Step 3: Cross multiply
    111,129.48x = 153,352.80 × 60,818.76
  4. Step 4: Simplify right side
    111,129.48x = 9,326,727,138.53
  5. Step 5: Solve for x
    x = 9,326,727,138.53/111,129.48
  6. Step 6: Final answer
    x = 83,926.67

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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.