Home / 135,158.32-186,510.95-74,725.44

Finding the Fourth Proportional to 135,158.32, 186,510.95 and 74,725.44

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Solution

The fourth proportional to 135,158.32, 186,510.95 and 74,725.44 is: 103,116.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,158.32 : 186,510.95 = 74,725.44 : x
  2. Step 2: Convert to fraction form
    135,158.32/186,510.95 = 74,725.44/x
  3. Step 3: Cross multiply
    135,158.32x = 186,510.95 × 74,725.44
  4. Step 4: Simplify right side
    135,158.32x = 13,937,111,871.01
  5. Step 5: Solve for x
    x = 13,937,111,871.01/135,158.32
  6. Step 6: Final answer
    x = 103,116.94

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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.