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Finding the Fourth Proportional to 103,247.70, 154,927.95 and 40,070.31

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Solution

The fourth proportional to 103,247.70, 154,927.95 and 40,070.31 is: 60,127.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,247.70 : 154,927.95 = 40,070.31 : x
  2. Step 2: Convert to fraction form
    103,247.70/154,927.95 = 40,070.31/x
  3. Step 3: Cross multiply
    103,247.70x = 154,927.95 × 40,070.31
  4. Step 4: Simplify right side
    103,247.70x = 6,208,010,984.16
  5. Step 5: Solve for x
    x = 6,208,010,984.16/103,247.70
  6. Step 6: Final answer
    x = 60,127.35

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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.