Home / 134,145.92-185,130.42-76,803.32

Finding the Fourth Proportional to 134,145.92, 185,130.42 and 76,803.32

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Solution

The fourth proportional to 134,145.92, 185,130.42 and 76,803.32 is: 105,993.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,145.92 : 185,130.42 = 76,803.32 : x
  2. Step 2: Convert to fraction form
    134,145.92/185,130.42 = 76,803.32/x
  3. Step 3: Cross multiply
    134,145.92x = 185,130.42 × 76,803.32
  4. Step 4: Simplify right side
    134,145.92x = 14,218,630,888.99
  5. Step 5: Solve for x
    x = 14,218,630,888.99/134,145.92
  6. Step 6: Final answer
    x = 105,993.76

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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.