Home / 134,931.15-186,212.29-74,501.62

Finding the Fourth Proportional to 134,931.15, 186,212.29 and 74,501.62

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Solution

The fourth proportional to 134,931.15, 186,212.29 and 74,501.62 is: 102,816.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,931.15 : 186,212.29 = 74,501.62 : x
  2. Step 2: Convert to fraction form
    134,931.15/186,212.29 = 74,501.62/x
  3. Step 3: Cross multiply
    134,931.15x = 186,212.29 × 74,501.62
  4. Step 4: Simplify right side
    134,931.15x = 13,873,117,268.91
  5. Step 5: Solve for x
    x = 13,873,117,268.91/134,931.15
  6. Step 6: Final answer
    x = 102,816.27

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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.