Home / 134,782.92-186,012.96-77,430.24

Finding the Fourth Proportional to 134,782.92, 186,012.96 and 77,430.24

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Solution

The fourth proportional to 134,782.92, 186,012.96 and 77,430.24 is: 106,860.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,782.92 : 186,012.96 = 77,430.24 : x
  2. Step 2: Convert to fraction form
    134,782.92/186,012.96 = 77,430.24/x
  3. Step 3: Cross multiply
    134,782.92x = 186,012.96 × 77,430.24
  4. Step 4: Simplify right side
    134,782.92x = 14,403,028,135.91
  5. Step 5: Solve for x
    x = 14,403,028,135.91/134,782.92
  6. Step 6: Final answer
    x = 106,860.93

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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.