Home / 148,649.16-205,172.58-91,302.36

Finding the Fourth Proportional to 148,649.16, 205,172.58 and 91,302.36

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Solution

The fourth proportional to 148,649.16, 205,172.58 and 91,302.36 is: 126,019.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,649.16 : 205,172.58 = 91,302.36 : x
  2. Step 2: Convert to fraction form
    148,649.16/205,172.58 = 91,302.36/x
  3. Step 3: Cross multiply
    148,649.16x = 205,172.58 × 91,302.36
  4. Step 4: Simplify right side
    148,649.16x = 18,732,740,761.29
  5. Step 5: Solve for x
    x = 18,732,740,761.29/148,649.16
  6. Step 6: Final answer
    x = 126,019.82

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1.5x scale

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.