Home / 135,160.16-186,513.52-74,727.28

Finding the Fourth Proportional to 135,160.16, 186,513.52 and 74,727.28

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Solution

The fourth proportional to 135,160.16, 186,513.52 and 74,727.28 is: 103,119.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,160.16 : 186,513.52 = 74,727.28 : x
  2. Step 2: Convert to fraction form
    135,160.16/186,513.52 = 74,727.28/x
  3. Step 3: Cross multiply
    135,160.16x = 186,513.52 × 74,727.28
  4. Step 4: Simplify right side
    135,160.16x = 13,937,648,032.83
  5. Step 5: Solve for x
    x = 13,937,648,032.83/135,160.16
  6. Step 6: Final answer
    x = 103,119.50

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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.