Home / 112,045.50-154,622.79-61,744.50

Finding the Fourth Proportional to 112,045.50, 154,622.79 and 61,744.50

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Solution

The fourth proportional to 112,045.50, 154,622.79 and 61,744.50 is: 85,207.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,045.50 : 154,622.79 = 61,744.50 : x
  2. Step 2: Convert to fraction form
    112,045.50/154,622.79 = 61,744.50/x
  3. Step 3: Cross multiply
    112,045.50x = 154,622.79 × 61,744.50
  4. Step 4: Simplify right side
    112,045.50x = 9,547,106,857.16
  5. Step 5: Solve for x
    x = 9,547,106,857.16/112,045.50
  6. Step 6: Final answer
    x = 85,207.41

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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.