Home / 134,772.51-186,045.84-87,049.13

Finding the Fourth Proportional to 134,772.51, 186,045.84 and 87,049.13

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Solution

The fourth proportional to 134,772.51, 186,045.84 and 87,049.13 is: 120,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,772.51 : 186,045.84 = 87,049.13 : x
  2. Step 2: Convert to fraction form
    134,772.51/186,045.84 = 87,049.13/x
  3. Step 3: Cross multiply
    134,772.51x = 186,045.84 × 87,049.13
  4. Step 4: Simplify right side
    134,772.51x = 16,195,127,581.89
  5. Step 5: Solve for x
    x = 16,195,127,581.89/134,772.51
  6. Step 6: Final answer
    x = 120,166.40

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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.