Home / 102,079.85-153,119.77-31,964.63

Finding the Fourth Proportional to 102,079.85, 153,119.77 and 31,964.63

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Solution

The fourth proportional to 102,079.85, 153,119.77 and 31,964.63 is: 47,946.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,079.85 : 153,119.77 = 31,964.63 : x
  2. Step 2: Convert to fraction form
    102,079.85/153,119.77 = 31,964.63/x
  3. Step 3: Cross multiply
    102,079.85x = 153,119.77 × 31,964.63
  4. Step 4: Simplify right side
    102,079.85x = 4,894,415,948.22
  5. Step 5: Solve for x
    x = 4,894,415,948.22/102,079.85
  6. Step 6: Final answer
    x = 47,946.94

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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.