Home / 134,129.84-185,098.20-72,875.48

Finding the Fourth Proportional to 134,129.84, 185,098.20 and 72,875.48

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Solution

The fourth proportional to 134,129.84, 185,098.20 and 72,875.48 is: 100,567.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,129.84 : 185,098.20 = 72,875.48 : x
  2. Step 2: Convert to fraction form
    134,129.84/185,098.20 = 72,875.48/x
  3. Step 3: Cross multiply
    134,129.84x = 185,098.20 × 72,875.48
  4. Step 4: Simplify right side
    134,129.84x = 13,489,120,172.14
  5. Step 5: Solve for x
    x = 13,489,120,172.14/134,129.84
  6. Step 6: Final answer
    x = 100,567.63

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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.