Home / 134,639.37-185,813.01-74,220.76

Finding the Fourth Proportional to 134,639.37, 185,813.01 and 74,220.76

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Solution

The fourth proportional to 134,639.37, 185,813.01 and 74,220.76 is: 102,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,639.37 : 185,813.01 = 74,220.76 : x
  2. Step 2: Convert to fraction form
    134,639.37/185,813.01 = 74,220.76/x
  3. Step 3: Cross multiply
    134,639.37x = 185,813.01 × 74,220.76
  4. Step 4: Simplify right side
    134,639.37x = 13,791,182,820.09
  5. Step 5: Solve for x
    x = 13,791,182,820.09/134,639.37
  6. Step 6: Final answer
    x = 102,430.54

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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.