Home / 134,739.40-185,941.84-74,312.60

Finding the Fourth Proportional to 134,739.40, 185,941.84 and 74,312.60

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Solution

The fourth proportional to 134,739.40, 185,941.84 and 74,312.60 is: 102,552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,739.40 : 185,941.84 = 74,312.60 : x
  2. Step 2: Convert to fraction form
    134,739.40/185,941.84 = 74,312.60/x
  3. Step 3: Cross multiply
    134,739.40x = 185,941.84 × 74,312.60
  4. Step 4: Simplify right side
    134,739.40x = 13,817,821,579.18
  5. Step 5: Solve for x
    x = 13,817,821,579.18/134,739.40
  6. Step 6: Final answer
    x = 102,552.20

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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.