Home / 140,130.63-193,384.37-76,472.53

Finding the Fourth Proportional to 140,130.63, 193,384.37 and 76,472.53

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Solution

The fourth proportional to 140,130.63, 193,384.37 and 76,472.53 is: 105,534.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,130.63 : 193,384.37 = 76,472.53 : x
  2. Step 2: Convert to fraction form
    140,130.63/193,384.37 = 76,472.53/x
  3. Step 3: Cross multiply
    140,130.63x = 193,384.37 × 76,472.53
  4. Step 4: Simplify right side
    140,130.63x = 14,788,592,036.36
  5. Step 5: Solve for x
    x = 14,788,592,036.36/140,130.63
  6. Step 6: Final answer
    x = 105,534.33

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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.