Home / 135,418.93-186,875.81-74,988.27

Finding the Fourth Proportional to 135,418.93, 186,875.81 and 74,988.27

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Solution

The fourth proportional to 135,418.93, 186,875.81 and 74,988.27 is: 103,482.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,418.93 : 186,875.81 = 74,988.27 : x
  2. Step 2: Convert to fraction form
    135,418.93/186,875.81 = 74,988.27/x
  3. Step 3: Cross multiply
    135,418.93x = 186,875.81 × 74,988.27
  4. Step 4: Simplify right side
    135,418.93x = 14,013,492,387.43
  5. Step 5: Solve for x
    x = 14,013,492,387.43/135,418.93
  6. Step 6: Final answer
    x = 103,482.53

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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.