Home / 134,931.79-186,127.81-87,185.13

Finding the Fourth Proportional to 134,931.79, 186,127.81 and 87,185.13

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Solution

The fourth proportional to 134,931.79, 186,127.81 and 87,185.13 is: 120,265.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,931.79 : 186,127.81 = 87,185.13 : x
  2. Step 2: Convert to fraction form
    134,931.79/186,127.81 = 87,185.13/x
  3. Step 3: Cross multiply
    134,931.79x = 186,127.81 × 87,185.13
  4. Step 4: Simplify right side
    134,931.79x = 16,227,577,311.47
  5. Step 5: Solve for x
    x = 16,227,577,311.47/134,931.79
  6. Step 6: Final answer
    x = 120,265.04

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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.