Home / 120,430.54-180,400.29-57,058.57

Finding the Fourth Proportional to 120,430.54, 180,400.29 and 57,058.57

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Solution

The fourth proportional to 120,430.54, 180,400.29 and 57,058.57 is: 85,471.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,430.54 : 180,400.29 = 57,058.57 : x
  2. Step 2: Convert to fraction form
    120,430.54/180,400.29 = 57,058.57/x
  3. Step 3: Cross multiply
    120,430.54x = 180,400.29 × 57,058.57
  4. Step 4: Simplify right side
    120,430.54x = 10,293,382,574.99
  5. Step 5: Solve for x
    x = 10,293,382,574.99/120,430.54
  6. Step 6: Final answer
    x = 85,471.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.