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Finding the Fourth Proportional to 134,419.44, 185,477.12 and 77,048.20

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Solution

The fourth proportional to 134,419.44, 185,477.12 and 77,048.20 is: 106,314.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,419.44 : 185,477.12 = 77,048.20 : x
  2. Step 2: Convert to fraction form
    134,419.44/185,477.12 = 77,048.20/x
  3. Step 3: Cross multiply
    134,419.44x = 185,477.12 × 77,048.20
  4. Step 4: Simplify right side
    134,419.44x = 14,290,677,851.94
  5. Step 5: Solve for x
    x = 14,290,677,851.94/134,419.44
  6. Step 6: Final answer
    x = 106,314.07

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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.