Home / 147,472.69-203,534.21-90,145.07

Finding the Fourth Proportional to 147,472.69, 203,534.21 and 90,145.07

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Solution

The fourth proportional to 147,472.69, 203,534.21 and 90,145.07 is: 124,413.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,472.69 : 203,534.21 = 90,145.07 : x
  2. Step 2: Convert to fraction form
    147,472.69/203,534.21 = 90,145.07/x
  3. Step 3: Cross multiply
    147,472.69x = 203,534.21 × 90,145.07
  4. Step 4: Simplify right side
    147,472.69x = 18,347,605,607.84
  5. Step 5: Solve for x
    x = 18,347,605,607.84/147,472.69
  6. Step 6: Final answer
    x = 124,413.58

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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.