Home / 130,107.11-179,448.74-111,988.66

Finding the Fourth Proportional to 130,107.11, 179,448.74 and 111,988.66

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Solution

The fourth proportional to 130,107.11, 179,448.74 and 111,988.66 is: 154,459.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,107.11 : 179,448.74 = 111,988.66 : x
  2. Step 2: Convert to fraction form
    130,107.11/179,448.74 = 111,988.66/x
  3. Step 3: Cross multiply
    130,107.11x = 179,448.74 × 111,988.66
  4. Step 4: Simplify right side
    130,107.11x = 20,096,223,931.29
  5. Step 5: Solve for x
    x = 20,096,223,931.29/130,107.11
  6. Step 6: Final answer
    x = 154,459.08

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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.