Home / 128,148,192.09-176,835,324.21-75,227,048.54

Finding the Fourth Proportional to 128,148,192.09, 176,835,324.21 and 75,227,048.54

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Solution

The fourth proportional to 128,148,192.09, 176,835,324.21 and 75,227,048.54 is: 103,807,937.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,148,192.09 : 176,835,324.21 = 75,227,048.54 : x
  2. Step 2: Convert to fraction form
    128,148,192.09/176,835,324.21 = 75,227,048.54/x
  3. Step 3: Cross multiply
    128,148,192.09x = 176,835,324.21 × 75,227,048.54
  4. Step 4: Simplify right side
    128,148,192.09x = 13,302,799,517,048,130
  5. Step 5: Solve for x
    x = 13,302,799,517,048,130/128,148,192.09
  6. Step 6: Final answer
    x = 103,807,937.52

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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.