Home / 102,570.30-153,867.74-31,483.63

Finding the Fourth Proportional to 102,570.30, 153,867.74 and 31,483.63

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Solution

The fourth proportional to 102,570.30, 153,867.74 and 31,483.63 is: 47,229.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,570.30 : 153,867.74 = 31,483.63 : x
  2. Step 2: Convert to fraction form
    102,570.30/153,867.74 = 31,483.63/x
  3. Step 3: Cross multiply
    102,570.30x = 153,867.74 × 31,483.63
  4. Step 4: Simplify right side
    102,570.30x = 4,844,314,689.14
  5. Step 5: Solve for x
    x = 4,844,314,689.14/102,570.30
  6. Step 6: Final answer
    x = 47,229.21

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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.