Home / 102,488.58-153,660.26-45,531.20

Finding the Fourth Proportional to 102,488.58, 153,660.26 and 45,531.20

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Solution

The fourth proportional to 102,488.58, 153,660.26 and 45,531.20 is: 68,264.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,488.58 : 153,660.26 = 45,531.20 : x
  2. Step 2: Convert to fraction form
    102,488.58/153,660.26 = 45,531.20/x
  3. Step 3: Cross multiply
    102,488.58x = 153,660.26 × 45,531.20
  4. Step 4: Simplify right side
    102,488.58x = 6,996,336,030.11
  5. Step 5: Solve for x
    x = 6,996,336,030.11/102,488.58
  6. Step 6: Final answer
    x = 68,264.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.