Home / 140,130.46-193,384.14-76,472.36

Finding the Fourth Proportional to 140,130.46, 193,384.14 and 76,472.36

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Solution

The fourth proportional to 140,130.46, 193,384.14 and 76,472.36 is: 105,534.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,130.46 : 193,384.14 = 76,472.36 : x
  2. Step 2: Convert to fraction form
    140,130.46/193,384.14 = 76,472.36/x
  3. Step 3: Cross multiply
    140,130.46x = 193,384.14 × 76,472.36
  4. Step 4: Simplify right side
    140,130.46x = 14,788,541,572.37
  5. Step 5: Solve for x
    x = 14,788,541,572.37/140,130.46
  6. Step 6: Final answer
    x = 105,534.10

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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.