Home / 132,988.16-183,498.60-79,278.17

Finding the Fourth Proportional to 132,988.16, 183,498.60 and 79,278.17

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Solution

The fourth proportional to 132,988.16, 183,498.60 and 79,278.17 is: 109,388.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,988.16 : 183,498.60 = 79,278.17 : x
  2. Step 2: Convert to fraction form
    132,988.16/183,498.60 = 79,278.17/x
  3. Step 3: Cross multiply
    132,988.16x = 183,498.60 × 79,278.17
  4. Step 4: Simplify right side
    132,988.16x = 14,547,433,205.56
  5. Step 5: Solve for x
    x = 14,547,433,205.56/132,988.16
  6. Step 6: Final answer
    x = 109,388.94

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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.